Home / 20,375.76-30,565.93-18,282.90

Finding the Fourth Proportional to 20,375.76, 30,565.93 and 18,282.90

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Solution

The fourth proportional to 20,375.76, 30,565.93 and 18,282.90 is: 27,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.76 : 30,565.93 = 18,282.90 : x
  2. Step 2: Convert to fraction form
    20,375.76/30,565.93 = 18,282.90/x
  3. Step 3: Cross multiply
    20,375.76x = 30,565.93 × 18,282.90
  4. Step 4: Simplify right side
    20,375.76x = 558,833,841.60
  5. Step 5: Solve for x
    x = 558,833,841.60/20,375.76
  6. Step 6: Final answer
    x = 27,426.40

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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.