Home / 25,452.78-38,138.13-13,771.50

Finding the Fourth Proportional to 25,452.78, 38,138.13 and 13,771.50

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Solution

The fourth proportional to 25,452.78, 38,138.13 and 13,771.50 is: 20,635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,452.78 : 38,138.13 = 13,771.50 : x
  2. Step 2: Convert to fraction form
    25,452.78/38,138.13 = 13,771.50/x
  3. Step 3: Cross multiply
    25,452.78x = 38,138.13 × 13,771.50
  4. Step 4: Simplify right side
    25,452.78x = 525,219,257.30
  5. Step 5: Solve for x
    x = 525,219,257.30/25,452.78
  6. Step 6: Final answer
    x = 20,635.04

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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.