Home / 25,378.78-38,046.29-12,213.04

Finding the Fourth Proportional to 25,378.78, 38,046.29 and 12,213.04

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Solution

The fourth proportional to 25,378.78, 38,046.29 and 12,213.04 is: 18,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.78 : 38,046.29 = 12,213.04 : x
  2. Step 2: Convert to fraction form
    25,378.78/38,046.29 = 12,213.04/x
  3. Step 3: Cross multiply
    25,378.78x = 38,046.29 × 12,213.04
  4. Step 4: Simplify right side
    25,378.78x = 464,660,861.62
  5. Step 5: Solve for x
    x = 464,660,861.62/25,378.78
  6. Step 6: Final answer
    x = 18,309.03

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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.