Home / 25,690.79-35,449.17-15,613.85

Finding the Fourth Proportional to 25,690.79, 35,449.17 and 15,613.85

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Solution

The fourth proportional to 25,690.79, 35,449.17 and 15,613.85 is: 21,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.79 : 35,449.17 = 15,613.85 : x
  2. Step 2: Convert to fraction form
    25,690.79/35,449.17 = 15,613.85/x
  3. Step 3: Cross multiply
    25,690.79x = 35,449.17 × 15,613.85
  4. Step 4: Simplify right side
    25,690.79x = 553,498,023.00
  5. Step 5: Solve for x
    x = 553,498,023.00/25,690.79
  6. Step 6: Final answer
    x = 21,544.61

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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.