Home / 25,919.68-38,875.20-8,386.96

Finding the Fourth Proportional to 25,919.68, 38,875.20 and 8,386.96

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Solution

The fourth proportional to 25,919.68, 38,875.20 and 8,386.96 is: 12,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.68 : 38,875.20 = 8,386.96 : x
  2. Step 2: Convert to fraction form
    25,919.68/38,875.20 = 8,386.96/x
  3. Step 3: Cross multiply
    25,919.68x = 38,875.20 × 8,386.96
  4. Step 4: Simplify right side
    25,919.68x = 326,044,747.39
  5. Step 5: Solve for x
    x = 326,044,747.39/25,919.68
  6. Step 6: Final answer
    x = 12,579.04

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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.