Home / 25,519.10-35,217.14-15,449.40

Finding the Fourth Proportional to 25,519.10, 35,217.14 and 15,449.40

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Solution

The fourth proportional to 25,519.10, 35,217.14 and 15,449.40 is: 21,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,519.10 : 35,217.14 = 15,449.40 : x
  2. Step 2: Convert to fraction form
    25,519.10/35,217.14 = 15,449.40/x
  3. Step 3: Cross multiply
    25,519.10x = 35,217.14 × 15,449.40
  4. Step 4: Simplify right side
    25,519.10x = 544,083,605.47
  5. Step 5: Solve for x
    x = 544,083,605.47/25,519.10
  6. Step 6: Final answer
    x = 21,320.65

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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.