Home / 28,372.16-42,549.24-9,648.86

Finding the Fourth Proportional to 28,372.16, 42,549.24 and 9,648.86

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Solution

The fourth proportional to 28,372.16, 42,549.24 and 9,648.86 is: 14,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.16 : 42,549.24 = 9,648.86 : x
  2. Step 2: Convert to fraction form
    28,372.16/42,549.24 = 9,648.86/x
  3. Step 3: Cross multiply
    28,372.16x = 42,549.24 × 9,648.86
  4. Step 4: Simplify right side
    28,372.16x = 410,551,659.87
  5. Step 5: Solve for x
    x = 410,551,659.87/28,372.16
  6. Step 6: Final answer
    x = 14,470.23

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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.