Home / 28,314.22-42,476.46-11,665

Finding the Fourth Proportional to 28,314.22, 42,476.46 and 11,665

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Solution

The fourth proportional to 28,314.22, 42,476.46 and 11,665 is: 17,499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.22 : 42,476.46 = 11,665 : x
  2. Step 2: Convert to fraction form
    28,314.22/42,476.46 = 11,665/x
  3. Step 3: Cross multiply
    28,314.22x = 42,476.46 × 11,665
  4. Step 4: Simplify right side
    28,314.22x = 495,487,905.90
  5. Step 5: Solve for x
    x = 495,487,905.90/28,314.22
  6. Step 6: Final answer
    x = 17,499.61

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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.