Home / 25,376.78-38,043.29-12,211.04

Finding the Fourth Proportional to 25,376.78, 38,043.29 and 12,211.04

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Solution

The fourth proportional to 25,376.78, 38,043.29 and 12,211.04 is: 18,306.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,376.78 : 38,043.29 = 12,211.04 : x
  2. Step 2: Convert to fraction form
    25,376.78/38,043.29 = 12,211.04/x
  3. Step 3: Cross multiply
    25,376.78x = 38,043.29 × 12,211.04
  4. Step 4: Simplify right side
    25,376.78x = 464,548,135.92
  5. Step 5: Solve for x
    x = 464,548,135.92/25,376.78
  6. Step 6: Final answer
    x = 18,306.03

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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.