Home / 31,700.60-47,517.18-11,970.76

Finding the Fourth Proportional to 31,700.60, 47,517.18 and 11,970.76

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Solution

The fourth proportional to 31,700.60, 47,517.18 and 11,970.76 is: 17,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.60 : 47,517.18 = 11,970.76 : x
  2. Step 2: Convert to fraction form
    31,700.60/47,517.18 = 11,970.76/x
  3. Step 3: Cross multiply
    31,700.60x = 47,517.18 × 11,970.76
  4. Step 4: Simplify right side
    31,700.60x = 568,816,757.66
  5. Step 5: Solve for x
    x = 568,816,757.66/31,700.60
  6. Step 6: Final answer
    x = 17,943.41

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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.