Home / 47,581.92-71,370-12,521.52

Finding the Fourth Proportional to 47,581.92, 71,370 and 12,521.52

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Solution

The fourth proportional to 47,581.92, 71,370 and 12,521.52 is: 18,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,581.92 : 71,370 = 12,521.52 : x
  2. Step 2: Convert to fraction form
    47,581.92/71,370 = 12,521.52/x
  3. Step 3: Cross multiply
    47,581.92x = 71,370 × 12,521.52
  4. Step 4: Simplify right side
    47,581.92x = 893,660,882.40
  5. Step 5: Solve for x
    x = 893,660,882.40/47,581.92
  6. Step 6: Final answer
    x = 18,781.52

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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.