Home / 20,063.10-30,159.45-18,507.90

Finding the Fourth Proportional to 20,063.10, 30,159.45 and 18,507.90

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Solution

The fourth proportional to 20,063.10, 30,159.45 and 18,507.90 is: 27,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.10 : 30,159.45 = 18,507.90 : x
  2. Step 2: Convert to fraction form
    20,063.10/30,159.45 = 18,507.90/x
  3. Step 3: Cross multiply
    20,063.10x = 30,159.45 × 18,507.90
  4. Step 4: Simplify right side
    20,063.10x = 558,188,084.66
  5. Step 5: Solve for x
    x = 558,188,084.66/20,063.10
  6. Step 6: Final answer
    x = 27,821.63

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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.