Home / 27,397.95-37,813.46-20,691.15

Finding the Fourth Proportional to 27,397.95, 37,813.46 and 20,691.15

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Solution

The fourth proportional to 27,397.95, 37,813.46 and 20,691.15 is: 28,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,397.95 : 37,813.46 = 20,691.15 : x
  2. Step 2: Convert to fraction form
    27,397.95/37,813.46 = 20,691.15/x
  3. Step 3: Cross multiply
    27,397.95x = 37,813.46 × 20,691.15
  4. Step 4: Simplify right side
    27,397.95x = 782,403,869.42
  5. Step 5: Solve for x
    x = 782,403,869.42/27,397.95
  6. Step 6: Final answer
    x = 28,557.02

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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.