Home / 47,780.60-65,933.30-28,131.97

Finding the Fourth Proportional to 47,780.60, 65,933.30 and 28,131.97

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Solution

The fourth proportional to 47,780.60, 65,933.30 and 28,131.97 is: 38,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.60 : 65,933.30 = 28,131.97 : x
  2. Step 2: Convert to fraction form
    47,780.60/65,933.30 = 28,131.97/x
  3. Step 3: Cross multiply
    47,780.60x = 65,933.30 × 28,131.97
  4. Step 4: Simplify right side
    47,780.60x = 1,854,833,487.66
  5. Step 5: Solve for x
    x = 1,854,833,487.66/47,780.60
  6. Step 6: Final answer
    x = 38,819.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.