Home / 20,039.52-27,654-11,087.20

Finding the Fourth Proportional to 20,039.52, 27,654 and 11,087.20

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Solution

The fourth proportional to 20,039.52, 27,654 and 11,087.20 is: 15,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.52 : 27,654 = 11,087.20 : x
  2. Step 2: Convert to fraction form
    20,039.52/27,654 = 11,087.20/x
  3. Step 3: Cross multiply
    20,039.52x = 27,654 × 11,087.20
  4. Step 4: Simplify right side
    20,039.52x = 306,605,428.80
  5. Step 5: Solve for x
    x = 306,605,428.80/20,039.52
  6. Step 6: Final answer
    x = 15,300.04

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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.