Home / 20,373.43-30,562.89-8,689.39

Finding the Fourth Proportional to 20,373.43, 30,562.89 and 8,689.39

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Solution

The fourth proportional to 20,373.43, 30,562.89 and 8,689.39 is: 13,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.43 : 30,562.89 = 8,689.39 : x
  2. Step 2: Convert to fraction form
    20,373.43/30,562.89 = 8,689.39/x
  3. Step 3: Cross multiply
    20,373.43x = 30,562.89 × 8,689.39
  4. Step 4: Simplify right side
    20,373.43x = 265,572,870.74
  5. Step 5: Solve for x
    x = 265,572,870.74/20,373.43
  6. Step 6: Final answer
    x = 13,035.26

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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.