Home / 28,318.38-42,451.05-9,585.31

Finding the Fourth Proportional to 28,318.38, 42,451.05 and 9,585.31

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Solution

The fourth proportional to 28,318.38, 42,451.05 and 9,585.31 is: 14,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.38 : 42,451.05 = 9,585.31 : x
  2. Step 2: Convert to fraction form
    28,318.38/42,451.05 = 9,585.31/x
  3. Step 3: Cross multiply
    28,318.38x = 42,451.05 × 9,585.31
  4. Step 4: Simplify right side
    28,318.38x = 406,906,562.44
  5. Step 5: Solve for x
    x = 406,906,562.44/28,318.38
  6. Step 6: Final answer
    x = 14,368.99

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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.