Home / 29,293.72-40,425.10-15,864.66

Finding the Fourth Proportional to 29,293.72, 40,425.10 and 15,864.66

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Solution

The fourth proportional to 29,293.72, 40,425.10 and 15,864.66 is: 21,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,293.72 : 40,425.10 = 15,864.66 : x
  2. Step 2: Convert to fraction form
    29,293.72/40,425.10 = 15,864.66/x
  3. Step 3: Cross multiply
    29,293.72x = 40,425.10 × 15,864.66
  4. Step 4: Simplify right side
    29,293.72x = 641,330,387.64
  5. Step 5: Solve for x
    x = 641,330,387.64/29,293.72
  6. Step 6: Final answer
    x = 21,893.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.