Home / 20,189.32-30,281.59-5,399.38

Finding the Fourth Proportional to 20,189.32, 30,281.59 and 5,399.38

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Solution

The fourth proportional to 20,189.32, 30,281.59 and 5,399.38 is: 8,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.32 : 30,281.59 = 5,399.38 : x
  2. Step 2: Convert to fraction form
    20,189.32/30,281.59 = 5,399.38/x
  3. Step 3: Cross multiply
    20,189.32x = 30,281.59 × 5,399.38
  4. Step 4: Simplify right side
    20,189.32x = 163,501,856.02
  5. Step 5: Solve for x
    x = 163,501,856.02/20,189.32
  6. Step 6: Final answer
    x = 8,098.43

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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.