Home / 25,676.08-38,515.20-12,540.04

Finding the Fourth Proportional to 25,676.08, 38,515.20 and 12,540.04

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Solution

The fourth proportional to 25,676.08, 38,515.20 and 12,540.04 is: 18,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,676.08 : 38,515.20 = 12,540.04 : x
  2. Step 2: Convert to fraction form
    25,676.08/38,515.20 = 12,540.04/x
  3. Step 3: Cross multiply
    25,676.08x = 38,515.20 × 12,540.04
  4. Step 4: Simplify right side
    25,676.08x = 482,982,148.61
  5. Step 5: Solve for x
    x = 482,982,148.61/25,676.08
  6. Step 6: Final answer
    x = 18,810.59

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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.