Home / 25,650.62-38,405.07-13,143.71

Finding the Fourth Proportional to 25,650.62, 38,405.07 and 13,143.71

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Solution

The fourth proportional to 25,650.62, 38,405.07 and 13,143.71 is: 19,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.62 : 38,405.07 = 13,143.71 : x
  2. Step 2: Convert to fraction form
    25,650.62/38,405.07 = 13,143.71/x
  3. Step 3: Cross multiply
    25,650.62x = 38,405.07 × 13,143.71
  4. Step 4: Simplify right side
    25,650.62x = 504,785,102.61
  5. Step 5: Solve for x
    x = 504,785,102.61/25,650.62
  6. Step 6: Final answer
    x = 19,679.26

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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.