Home / 25,399.64-38,108.10-13,079

Finding the Fourth Proportional to 25,399.64, 38,108.10 and 13,079

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Solution

The fourth proportional to 25,399.64, 38,108.10 and 13,079 is: 19,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,399.64 : 38,108.10 = 13,079 : x
  2. Step 2: Convert to fraction form
    25,399.64/38,108.10 = 13,079/x
  3. Step 3: Cross multiply
    25,399.64x = 38,108.10 × 13,079
  4. Step 4: Simplify right side
    25,399.64x = 498,415,839.90
  5. Step 5: Solve for x
    x = 498,415,839.90/25,399.64
  6. Step 6: Final answer
    x = 19,622.95

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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.