Home / 20,333.20-30,496.70-5,543.32

Finding the Fourth Proportional to 20,333.20, 30,496.70 and 5,543.32

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Solution

The fourth proportional to 20,333.20, 30,496.70 and 5,543.32 is: 8,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.20 : 30,496.70 = 5,543.32 : x
  2. Step 2: Convert to fraction form
    20,333.20/30,496.70 = 5,543.32/x
  3. Step 3: Cross multiply
    20,333.20x = 30,496.70 × 5,543.32
  4. Step 4: Simplify right side
    20,333.20x = 169,052,967.04
  5. Step 5: Solve for x
    x = 169,052,967.04/20,333.20
  6. Step 6: Final answer
    x = 8,314.13

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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.