Home / 28,314.24-42,480-14,472.96

Finding the Fourth Proportional to 28,314.24, 42,480 and 14,472.96

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Solution

The fourth proportional to 28,314.24, 42,480 and 14,472.96 is: 21,713.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.24 : 42,480 = 14,472.96 : x
  2. Step 2: Convert to fraction form
    28,314.24/42,480 = 14,472.96/x
  3. Step 3: Cross multiply
    28,314.24x = 42,480 × 14,472.96
  4. Step 4: Simplify right side
    28,314.24x = 614,811,340.80
  5. Step 5: Solve for x
    x = 614,811,340.80/28,314.24
  6. Step 6: Final answer
    x = 21,713.86

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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.