Home / 20,438.38-30,657.26-5,646.97

Finding the Fourth Proportional to 20,438.38, 30,657.26 and 5,646.97

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Solution

The fourth proportional to 20,438.38, 30,657.26 and 5,646.97 is: 8,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438.38 : 30,657.26 = 5,646.97 : x
  2. Step 2: Convert to fraction form
    20,438.38/30,657.26 = 5,646.97/x
  3. Step 3: Cross multiply
    20,438.38x = 30,657.26 × 5,646.97
  4. Step 4: Simplify right side
    20,438.38x = 173,120,627.50
  5. Step 5: Solve for x
    x = 173,120,627.50/20,438.38
  6. Step 6: Final answer
    x = 8,470.37

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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.