Home / 20,203.61-30,298.13-8,517.74

Finding the Fourth Proportional to 20,203.61, 30,298.13 and 8,517.74

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Solution

The fourth proportional to 20,203.61, 30,298.13 and 8,517.74 is: 12,773.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.61 : 30,298.13 = 8,517.74 : x
  2. Step 2: Convert to fraction form
    20,203.61/30,298.13 = 8,517.74/x
  3. Step 3: Cross multiply
    20,203.61x = 30,298.13 × 8,517.74
  4. Step 4: Simplify right side
    20,203.61x = 258,071,399.75
  5. Step 5: Solve for x
    x = 258,071,399.75/20,203.61
  6. Step 6: Final answer
    x = 12,773.53

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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.