Home / 38,511.20-57,766.80-21,864.80

Finding the Fourth Proportional to 38,511.20, 57,766.80 and 21,864.80

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Solution

The fourth proportional to 38,511.20, 57,766.80 and 21,864.80 is: 32,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.20 : 57,766.80 = 21,864.80 : x
  2. Step 2: Convert to fraction form
    38,511.20/57,766.80 = 21,864.80/x
  3. Step 3: Cross multiply
    38,511.20x = 57,766.80 × 21,864.80
  4. Step 4: Simplify right side
    38,511.20x = 1,263,059,528.64
  5. Step 5: Solve for x
    x = 1,263,059,528.64/38,511.20
  6. Step 6: Final answer
    x = 32,797.20

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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.