Home / 31,387.88-47,086.43-10,324.00

Finding the Fourth Proportional to 31,387.88, 47,086.43 and 10,324.00

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Solution

The fourth proportional to 31,387.88, 47,086.43 and 10,324.00 is: 15,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.88 : 47,086.43 = 10,324.00 : x
  2. Step 2: Convert to fraction form
    31,387.88/47,086.43 = 10,324.00/x
  3. Step 3: Cross multiply
    31,387.88x = 47,086.43 × 10,324.00
  4. Step 4: Simplify right side
    31,387.88x = 486,120,236.20
  5. Step 5: Solve for x
    x = 486,120,236.20/31,387.88
  6. Step 6: Final answer
    x = 15,487.51

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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.