Home / 25,451.97-35,122.11-15,374.45

Finding the Fourth Proportional to 25,451.97, 35,122.11 and 15,374.45

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Solution

The fourth proportional to 25,451.97, 35,122.11 and 15,374.45 is: 21,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.97 : 35,122.11 = 15,374.45 : x
  2. Step 2: Convert to fraction form
    25,451.97/35,122.11 = 15,374.45/x
  3. Step 3: Cross multiply
    25,451.97x = 35,122.11 × 15,374.45
  4. Step 4: Simplify right side
    25,451.97x = 539,982,948.48
  5. Step 5: Solve for x
    x = 539,982,948.48/25,451.97
  6. Step 6: Final answer
    x = 21,215.76

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1.5x scale

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.