Home / 31,572.56-47,358.84-12,860.48

Finding the Fourth Proportional to 31,572.56, 47,358.84 and 12,860.48

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Solution

The fourth proportional to 31,572.56, 47,358.84 and 12,860.48 is: 19,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.56 : 47,358.84 = 12,860.48 : x
  2. Step 2: Convert to fraction form
    31,572.56/47,358.84 = 12,860.48/x
  3. Step 3: Cross multiply
    31,572.56x = 47,358.84 × 12,860.48
  4. Step 4: Simplify right side
    31,572.56x = 609,057,414.64
  5. Step 5: Solve for x
    x = 609,057,414.64/31,572.56
  6. Step 6: Final answer
    x = 19,290.72

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Similar ratio
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1.5x scale

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.