Home / 25,742.88-38,626.38-9,115.47

Finding the Fourth Proportional to 25,742.88, 38,626.38 and 9,115.47

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Solution

The fourth proportional to 25,742.88, 38,626.38 and 9,115.47 is: 13,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.88 : 38,626.38 = 9,115.47 : x
  2. Step 2: Convert to fraction form
    25,742.88/38,626.38 = 9,115.47/x
  3. Step 3: Cross multiply
    25,742.88x = 38,626.38 × 9,115.47
  4. Step 4: Simplify right side
    25,742.88x = 352,097,608.10
  5. Step 5: Solve for x
    x = 352,097,608.10/25,742.88
  6. Step 6: Final answer
    x = 13,677.48

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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.