Home / 15,422.40-23,142.82-14,167.61

Finding the Fourth Proportional to 15,422.40, 23,142.82 and 14,167.61

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Solution

The fourth proportional to 15,422.40, 23,142.82 and 14,167.61 is: 21,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.40 : 23,142.82 = 14,167.61 : x
  2. Step 2: Convert to fraction form
    15,422.40/23,142.82 = 14,167.61/x
  3. Step 3: Cross multiply
    15,422.40x = 23,142.82 × 14,167.61
  4. Step 4: Simplify right side
    15,422.40x = 327,878,470.50
  5. Step 5: Solve for x
    x = 327,878,470.50/15,422.40
  6. Step 6: Final answer
    x = 21,259.88

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1.5x scale

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.