Home / 31,572.98-47,333.85-12,861.78

Finding the Fourth Proportional to 31,572.98, 47,333.85 and 12,861.78

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Solution

The fourth proportional to 31,572.98, 47,333.85 and 12,861.78 is: 19,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.98 : 47,333.85 = 12,861.78 : x
  2. Step 2: Convert to fraction form
    31,572.98/47,333.85 = 12,861.78/x
  3. Step 3: Cross multiply
    31,572.98x = 47,333.85 × 12,861.78
  4. Step 4: Simplify right side
    31,572.98x = 608,797,565.25
  5. Step 5: Solve for x
    x = 608,797,565.25/31,572.98
  6. Step 6: Final answer
    x = 19,282.23

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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.