Home / 29,020.20-43,530.30-20,077.80

Finding the Fourth Proportional to 29,020.20, 43,530.30 and 20,077.80

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Solution

The fourth proportional to 29,020.20, 43,530.30 and 20,077.80 is: 30,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,020.20 : 43,530.30 = 20,077.80 : x
  2. Step 2: Convert to fraction form
    29,020.20/43,530.30 = 20,077.80/x
  3. Step 3: Cross multiply
    29,020.20x = 43,530.30 × 20,077.80
  4. Step 4: Simplify right side
    29,020.20x = 873,992,657.34
  5. Step 5: Solve for x
    x = 873,992,657.34/29,020.20
  6. Step 6: Final answer
    x = 30,116.70

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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.