Home / 31,449.60-47,160.96-10,663.68

Finding the Fourth Proportional to 31,449.60, 47,160.96 and 10,663.68

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Solution

The fourth proportional to 31,449.60, 47,160.96 and 10,663.68 is: 15,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.60 : 47,160.96 = 10,663.68 : x
  2. Step 2: Convert to fraction form
    31,449.60/47,160.96 = 10,663.68/x
  3. Step 3: Cross multiply
    31,449.60x = 47,160.96 × 10,663.68
  4. Step 4: Simplify right side
    31,449.60x = 502,909,385.93
  5. Step 5: Solve for x
    x = 502,909,385.93/31,449.60
  6. Step 6: Final answer
    x = 15,990.96

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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.