Home / 25,830.06-35,639.67-15,220.68

Finding the Fourth Proportional to 25,830.06, 35,639.67 and 15,220.68

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Solution

The fourth proportional to 25,830.06, 35,639.67 and 15,220.68 is: 21,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.06 : 35,639.67 = 15,220.68 : x
  2. Step 2: Convert to fraction form
    25,830.06/35,639.67 = 15,220.68/x
  3. Step 3: Cross multiply
    25,830.06x = 35,639.67 × 15,220.68
  4. Step 4: Simplify right side
    25,830.06x = 542,460,012.38
  5. Step 5: Solve for x
    x = 542,460,012.38/25,830.06
  6. Step 6: Final answer
    x = 21,001.11

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Half scale
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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.