Home / 28,767.15-39,691.76-16,191.90

Finding the Fourth Proportional to 28,767.15, 39,691.76 and 16,191.90

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Solution

The fourth proportional to 28,767.15, 39,691.76 and 16,191.90 is: 22,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.15 : 39,691.76 = 16,191.90 : x
  2. Step 2: Convert to fraction form
    28,767.15/39,691.76 = 16,191.90/x
  3. Step 3: Cross multiply
    28,767.15x = 39,691.76 × 16,191.90
  4. Step 4: Simplify right side
    28,767.15x = 642,684,927.78
  5. Step 5: Solve for x
    x = 642,684,927.78/28,767.15
  6. Step 6: Final answer
    x = 22,340.93

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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.