Home / 25,422.28-38,135.98-8,780.12

Finding the Fourth Proportional to 25,422.28, 38,135.98 and 8,780.12

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Solution

The fourth proportional to 25,422.28, 38,135.98 and 8,780.12 is: 13,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,422.28 : 38,135.98 = 8,780.12 : x
  2. Step 2: Convert to fraction form
    25,422.28/38,135.98 = 8,780.12/x
  3. Step 3: Cross multiply
    25,422.28x = 38,135.98 × 8,780.12
  4. Step 4: Simplify right side
    25,422.28x = 334,838,480.72
  5. Step 5: Solve for x
    x = 334,838,480.72/25,422.28
  6. Step 6: Final answer
    x = 13,171.06

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1.5x scale

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.