Home / 31,562.20-47,343.30-11,841.40

Finding the Fourth Proportional to 31,562.20, 47,343.30 and 11,841.40

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Solution

The fourth proportional to 31,562.20, 47,343.30 and 11,841.40 is: 17,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,562.20 : 47,343.30 = 11,841.40 : x
  2. Step 2: Convert to fraction form
    31,562.20/47,343.30 = 11,841.40/x
  3. Step 3: Cross multiply
    31,562.20x = 47,343.30 × 11,841.40
  4. Step 4: Simplify right side
    31,562.20x = 560,610,952.62
  5. Step 5: Solve for x
    x = 560,610,952.62/31,562.20
  6. Step 6: Final answer
    x = 17,762.10

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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.