Home / 31,422.62-47,156.43-11,432.08

Finding the Fourth Proportional to 31,422.62, 47,156.43 and 11,432.08

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Solution

The fourth proportional to 31,422.62, 47,156.43 and 11,432.08 is: 17,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.62 : 47,156.43 = 11,432.08 : x
  2. Step 2: Convert to fraction form
    31,422.62/47,156.43 = 11,432.08/x
  3. Step 3: Cross multiply
    31,422.62x = 47,156.43 × 11,432.08
  4. Step 4: Simplify right side
    31,422.62x = 539,096,080.27
  5. Step 5: Solve for x
    x = 539,096,080.27/31,422.62
  6. Step 6: Final answer
    x = 17,156.31

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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.