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Finding the Fourth Proportional to 48,229.60, 72,322.80 and 21,920.80

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Solution

The fourth proportional to 48,229.60, 72,322.80 and 21,920.80 is: 32,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,229.60 : 72,322.80 = 21,920.80 : x
  2. Step 2: Convert to fraction form
    48,229.60/72,322.80 = 21,920.80/x
  3. Step 3: Cross multiply
    48,229.60x = 72,322.80 × 21,920.80
  4. Step 4: Simplify right side
    48,229.60x = 1,585,373,634.24
  5. Step 5: Solve for x
    x = 1,585,373,634.24/48,229.60
  6. Step 6: Final answer
    x = 32,871.38

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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.