Home / 19,943.20-29,862.15-15,975.82

Finding the Fourth Proportional to 19,943.20, 29,862.15 and 15,975.82

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Solution

The fourth proportional to 19,943.20, 29,862.15 and 15,975.82 is: 23,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.20 : 29,862.15 = 15,975.82 : x
  2. Step 2: Convert to fraction form
    19,943.20/29,862.15 = 15,975.82/x
  3. Step 3: Cross multiply
    19,943.20x = 29,862.15 × 15,975.82
  4. Step 4: Simplify right side
    19,943.20x = 477,072,333.21
  5. Step 5: Solve for x
    x = 477,072,333.21/19,943.20
  6. Step 6: Final answer
    x = 23,921.55

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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.