Home / 21,042.66-31,533.92-15,452.15

Finding the Fourth Proportional to 21,042.66, 31,533.92 and 15,452.15

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Solution

The fourth proportional to 21,042.66, 31,533.92 and 15,452.15 is: 23,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.66 : 31,533.92 = 15,452.15 : x
  2. Step 2: Convert to fraction form
    21,042.66/31,533.92 = 15,452.15/x
  3. Step 3: Cross multiply
    21,042.66x = 31,533.92 × 15,452.15
  4. Step 4: Simplify right side
    21,042.66x = 487,266,627.00
  5. Step 5: Solve for x
    x = 487,266,627.00/21,042.66
  6. Step 6: Final answer
    x = 23,156.13

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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.