Home / 27,917.28-38,526.10-15,170.47

Finding the Fourth Proportional to 27,917.28, 38,526.10 and 15,170.47

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Solution

The fourth proportional to 27,917.28, 38,526.10 and 15,170.47 is: 20,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.28 : 38,526.10 = 15,170.47 : x
  2. Step 2: Convert to fraction form
    27,917.28/38,526.10 = 15,170.47/x
  3. Step 3: Cross multiply
    27,917.28x = 38,526.10 × 15,170.47
  4. Step 4: Simplify right side
    27,917.28x = 584,459,044.27
  5. Step 5: Solve for x
    x = 584,459,044.27/27,917.28
  6. Step 6: Final answer
    x = 20,935.39

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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.