Home / 25,929.20-38,899.92-8,399

Finding the Fourth Proportional to 25,929.20, 38,899.92 and 8,399

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Solution

The fourth proportional to 25,929.20, 38,899.92 and 8,399 is: 12,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.20 : 38,899.92 = 8,399 : x
  2. Step 2: Convert to fraction form
    25,929.20/38,899.92 = 8,399/x
  3. Step 3: Cross multiply
    25,929.20x = 38,899.92 × 8,399
  4. Step 4: Simplify right side
    25,929.20x = 326,720,428.08
  5. Step 5: Solve for x
    x = 326,720,428.08/25,929.20
  6. Step 6: Final answer
    x = 12,600.48

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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.