Home / 27,728.38-38,271.97-15,798.77

Finding the Fourth Proportional to 27,728.38, 38,271.97 and 15,798.77

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Solution

The fourth proportional to 27,728.38, 38,271.97 and 15,798.77 is: 21,806.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.38 : 38,271.97 = 15,798.77 : x
  2. Step 2: Convert to fraction form
    27,728.38/38,271.97 = 15,798.77/x
  3. Step 3: Cross multiply
    27,728.38x = 38,271.97 × 15,798.77
  4. Step 4: Simplify right side
    27,728.38x = 604,650,051.48
  5. Step 5: Solve for x
    x = 604,650,051.48/27,728.38
  6. Step 6: Final answer
    x = 21,806.18

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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.