Home / 21,517.60-32,280.04-6,723.61

Finding the Fourth Proportional to 21,517.60, 32,280.04 and 6,723.61

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Solution

The fourth proportional to 21,517.60, 32,280.04 and 6,723.61 is: 10,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.60 : 32,280.04 = 6,723.61 : x
  2. Step 2: Convert to fraction form
    21,517.60/32,280.04 = 6,723.61/x
  3. Step 3: Cross multiply
    21,517.60x = 32,280.04 × 6,723.61
  4. Step 4: Simplify right side
    21,517.60x = 217,038,238.34
  5. Step 5: Solve for x
    x = 217,038,238.34/21,517.60
  6. Step 6: Final answer
    x = 10,086.55

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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.