Home / 25,974.30-38,961.45-8,445.90

Finding the Fourth Proportional to 25,974.30, 38,961.45 and 8,445.90

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Solution

The fourth proportional to 25,974.30, 38,961.45 and 8,445.90 is: 12,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.30 : 38,961.45 = 8,445.90 : x
  2. Step 2: Convert to fraction form
    25,974.30/38,961.45 = 8,445.90/x
  3. Step 3: Cross multiply
    25,974.30x = 38,961.45 × 8,445.90
  4. Step 4: Simplify right side
    25,974.30x = 329,064,510.56
  5. Step 5: Solve for x
    x = 329,064,510.56/25,974.30
  6. Step 6: Final answer
    x = 12,668.85

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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.