Home / 31,343.59-47,057.07-18,205.39

Finding the Fourth Proportional to 31,343.59, 47,057.07 and 18,205.39

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Solution

The fourth proportional to 31,343.59, 47,057.07 and 18,205.39 is: 27,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.59 : 47,057.07 = 18,205.39 : x
  2. Step 2: Convert to fraction form
    31,343.59/47,057.07 = 18,205.39/x
  3. Step 3: Cross multiply
    31,343.59x = 47,057.07 × 18,205.39
  4. Step 4: Simplify right side
    31,343.59x = 856,692,311.61
  5. Step 5: Solve for x
    x = 856,692,311.61/31,343.59
  6. Step 6: Final answer
    x = 27,332.30

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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.