Home / 25,728.06-35,521.56-19,790.76

Finding the Fourth Proportional to 25,728.06, 35,521.56 and 19,790.76

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Solution

The fourth proportional to 25,728.06, 35,521.56 and 19,790.76 is: 27,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.06 : 35,521.56 = 19,790.76 : x
  2. Step 2: Convert to fraction form
    25,728.06/35,521.56 = 19,790.76/x
  3. Step 3: Cross multiply
    25,728.06x = 35,521.56 × 19,790.76
  4. Step 4: Simplify right side
    25,728.06x = 702,998,668.79
  5. Step 5: Solve for x
    x = 702,998,668.79/25,728.06
  6. Step 6: Final answer
    x = 27,324.20

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Find fourth proportional to 12,864.03, 17,760.78 and 9,895.38
Half scale
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Double scale
Find fourth proportional to 25,729.06, 35,522.94 and 19,791.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.