Home / 47,987.46-71,937.36-16,805.70

Finding the Fourth Proportional to 47,987.46, 71,937.36 and 16,805.70

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Solution

The fourth proportional to 47,987.46, 71,937.36 and 16,805.70 is: 25,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,987.46 : 71,937.36 = 16,805.70 : x
  2. Step 2: Convert to fraction form
    47,987.46/71,937.36 = 16,805.70/x
  3. Step 3: Cross multiply
    47,987.46x = 71,937.36 × 16,805.70
  4. Step 4: Simplify right side
    47,987.46x = 1,208,957,690.95
  5. Step 5: Solve for x
    x = 1,208,957,690.95/47,987.46
  6. Step 6: Final answer
    x = 25,193.20

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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.