Home / 21,843.23-32,770.13-15,587.78

Finding the Fourth Proportional to 21,843.23, 32,770.13 and 15,587.78

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Solution

The fourth proportional to 21,843.23, 32,770.13 and 15,587.78 is: 23,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.23 : 32,770.13 = 15,587.78 : x
  2. Step 2: Convert to fraction form
    21,843.23/32,770.13 = 15,587.78/x
  3. Step 3: Cross multiply
    21,843.23x = 32,770.13 × 15,587.78
  4. Step 4: Simplify right side
    21,843.23x = 510,813,335.22
  5. Step 5: Solve for x
    x = 510,813,335.22/21,843.23
  6. Step 6: Final answer
    x = 23,385.44

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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.