Home / 28,119.68-42,184.72-9,397.92

Finding the Fourth Proportional to 28,119.68, 42,184.72 and 9,397.92

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Solution

The fourth proportional to 28,119.68, 42,184.72 and 9,397.92 is: 14,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.68 : 42,184.72 = 9,397.92 : x
  2. Step 2: Convert to fraction form
    28,119.68/42,184.72 = 9,397.92/x
  3. Step 3: Cross multiply
    28,119.68x = 42,184.72 × 9,397.92
  4. Step 4: Simplify right side
    28,119.68x = 396,448,623.78
  5. Step 5: Solve for x
    x = 396,448,623.78/28,119.68
  6. Step 6: Final answer
    x = 14,098.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.