Home / 47,618.40-71,421.84-12,560.88

Finding the Fourth Proportional to 47,618.40, 71,421.84 and 12,560.88

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Solution

The fourth proportional to 47,618.40, 71,421.84 and 12,560.88 is: 18,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,618.40 : 71,421.84 = 12,560.88 : x
  2. Step 2: Convert to fraction form
    47,618.40/71,421.84 = 12,560.88/x
  3. Step 3: Cross multiply
    47,618.40x = 71,421.84 × 12,560.88
  4. Step 4: Simplify right side
    47,618.40x = 897,121,161.62
  5. Step 5: Solve for x
    x = 897,121,161.62/47,618.40
  6. Step 6: Final answer
    x = 18,839.80

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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.