Home / 20,103.96-30,166.23-8,867.13

Finding the Fourth Proportional to 20,103.96, 30,166.23 and 8,867.13

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Solution

The fourth proportional to 20,103.96, 30,166.23 and 8,867.13 is: 13,305.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.96 : 30,166.23 = 8,867.13 : x
  2. Step 2: Convert to fraction form
    20,103.96/30,166.23 = 8,867.13/x
  3. Step 3: Cross multiply
    20,103.96x = 30,166.23 × 8,867.13
  4. Step 4: Simplify right side
    20,103.96x = 267,487,990.32
  5. Step 5: Solve for x
    x = 267,487,990.32/20,103.96
  6. Step 6: Final answer
    x = 13,305.24

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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.