Home / 21,593.40-32,390.10-8,436.55

Finding the Fourth Proportional to 21,593.40, 32,390.10 and 8,436.55

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Solution

The fourth proportional to 21,593.40, 32,390.10 and 8,436.55 is: 12,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.40 : 32,390.10 = 8,436.55 : x
  2. Step 2: Convert to fraction form
    21,593.40/32,390.10 = 8,436.55/x
  3. Step 3: Cross multiply
    21,593.40x = 32,390.10 × 8,436.55
  4. Step 4: Simplify right side
    21,593.40x = 273,260,617.18
  5. Step 5: Solve for x
    x = 273,260,617.18/21,593.40
  6. Step 6: Final answer
    x = 12,654.82

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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.