Home / 25,255.20-34,882.80-18,531.12

Finding the Fourth Proportional to 25,255.20, 34,882.80 and 18,531.12

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Solution

The fourth proportional to 25,255.20, 34,882.80 and 18,531.12 is: 25,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,255.20 : 34,882.80 = 18,531.12 : x
  2. Step 2: Convert to fraction form
    25,255.20/34,882.80 = 18,531.12/x
  3. Step 3: Cross multiply
    25,255.20x = 34,882.80 × 18,531.12
  4. Step 4: Simplify right side
    25,255.20x = 646,417,352.74
  5. Step 5: Solve for x
    x = 646,417,352.74/25,255.20
  6. Step 6: Final answer
    x = 25,595.42

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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.