Home / 25,874.10-38,794.34-12,359.72

Finding the Fourth Proportional to 25,874.10, 38,794.34 and 12,359.72

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Solution

The fourth proportional to 25,874.10, 38,794.34 and 12,359.72 is: 18,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.10 : 38,794.34 = 12,359.72 : x
  2. Step 2: Convert to fraction form
    25,874.10/38,794.34 = 12,359.72/x
  3. Step 3: Cross multiply
    25,874.10x = 38,794.34 × 12,359.72
  4. Step 4: Simplify right side
    25,874.10x = 479,487,307.87
  5. Step 5: Solve for x
    x = 479,487,307.87/25,874.10
  6. Step 6: Final answer
    x = 18,531.56

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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.