Home / 29,291.31-40,422.12-15,862.53

Finding the Fourth Proportional to 29,291.31, 40,422.12 and 15,862.53

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Solution

The fourth proportional to 29,291.31, 40,422.12 and 15,862.53 is: 21,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.31 : 40,422.12 = 15,862.53 : x
  2. Step 2: Convert to fraction form
    29,291.31/40,422.12 = 15,862.53/x
  3. Step 3: Cross multiply
    29,291.31x = 40,422.12 × 15,862.53
  4. Step 4: Simplify right side
    29,291.31x = 641,197,091.16
  5. Step 5: Solve for x
    x = 641,197,091.16/29,291.31
  6. Step 6: Final answer
    x = 21,890.35

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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.