Home / 25,389.03-38,108.15-12,250.64

Finding the Fourth Proportional to 25,389.03, 38,108.15 and 12,250.64

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Solution

The fourth proportional to 25,389.03, 38,108.15 and 12,250.64 is: 18,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.03 : 38,108.15 = 12,250.64 : x
  2. Step 2: Convert to fraction form
    25,389.03/38,108.15 = 12,250.64/x
  3. Step 3: Cross multiply
    25,389.03x = 38,108.15 × 12,250.64
  4. Step 4: Simplify right side
    25,389.03x = 466,848,974.92
  5. Step 5: Solve for x
    x = 466,848,974.92/25,389.03
  6. Step 6: Final answer
    x = 18,387.82

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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.