Home / 31,808.04-47,711.20-15,179.80

Finding the Fourth Proportional to 31,808.04, 47,711.20 and 15,179.80

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Solution

The fourth proportional to 31,808.04, 47,711.20 and 15,179.80 is: 22,769.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,808.04 : 47,711.20 = 15,179.80 : x
  2. Step 2: Convert to fraction form
    31,808.04/47,711.20 = 15,179.80/x
  3. Step 3: Cross multiply
    31,808.04x = 47,711.20 × 15,179.80
  4. Step 4: Simplify right side
    31,808.04x = 724,246,473.76
  5. Step 5: Solve for x
    x = 724,246,473.76/31,808.04
  6. Step 6: Final answer
    x = 22,769.29

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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.