Home / 25,008.55-34,512.68-13,679.08

Finding the Fourth Proportional to 25,008.55, 34,512.68 and 13,679.08

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Solution

The fourth proportional to 25,008.55, 34,512.68 and 13,679.08 is: 18,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,008.55 : 34,512.68 = 13,679.08 : x
  2. Step 2: Convert to fraction form
    25,008.55/34,512.68 = 13,679.08/x
  3. Step 3: Cross multiply
    25,008.55x = 34,512.68 × 13,679.08
  4. Step 4: Simplify right side
    25,008.55x = 472,101,658.65
  5. Step 5: Solve for x
    x = 472,101,658.65/25,008.55
  6. Step 6: Final answer
    x = 18,877.61

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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.