Home / 21,447.45-32,148.72-8,974.62

Finding the Fourth Proportional to 21,447.45, 32,148.72 and 8,974.62

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Solution

The fourth proportional to 21,447.45, 32,148.72 and 8,974.62 is: 13,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.45 : 32,148.72 = 8,974.62 : x
  2. Step 2: Convert to fraction form
    21,447.45/32,148.72 = 8,974.62/x
  3. Step 3: Cross multiply
    21,447.45x = 32,148.72 × 8,974.62
  4. Step 4: Simplify right side
    21,447.45x = 288,522,545.49
  5. Step 5: Solve for x
    x = 288,522,545.49/21,447.45
  6. Step 6: Final answer
    x = 13,452.53

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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.