Home / 28,191.28-38,841.32-18,614.10

Finding the Fourth Proportional to 28,191.28, 38,841.32 and 18,614.10

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Solution

The fourth proportional to 28,191.28, 38,841.32 and 18,614.10 is: 25,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.28 : 38,841.32 = 18,614.10 : x
  2. Step 2: Convert to fraction form
    28,191.28/38,841.32 = 18,614.10/x
  3. Step 3: Cross multiply
    28,191.28x = 38,841.32 × 18,614.10
  4. Step 4: Simplify right side
    28,191.28x = 722,996,214.61
  5. Step 5: Solve for x
    x = 722,996,214.61/28,191.28
  6. Step 6: Final answer
    x = 25,646.09

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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.