Home / 25,287.28-34,885.56-15,854.04

Finding the Fourth Proportional to 25,287.28, 34,885.56 and 15,854.04

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Solution

The fourth proportional to 25,287.28, 34,885.56 and 15,854.04 is: 21,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.28 : 34,885.56 = 15,854.04 : x
  2. Step 2: Convert to fraction form
    25,287.28/34,885.56 = 15,854.04/x
  3. Step 3: Cross multiply
    25,287.28x = 34,885.56 × 15,854.04
  4. Step 4: Simplify right side
    25,287.28x = 553,077,063.66
  5. Step 5: Solve for x
    x = 553,077,063.66/25,287.28
  6. Step 6: Final answer
    x = 21,871.75

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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.