Home / 20,179.80-30,270.92-7,701.01

Finding the Fourth Proportional to 20,179.80, 30,270.92 and 7,701.01

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Solution

The fourth proportional to 20,179.80, 30,270.92 and 7,701.01 is: 11,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.80 : 30,270.92 = 7,701.01 : x
  2. Step 2: Convert to fraction form
    20,179.80/30,270.92 = 7,701.01/x
  3. Step 3: Cross multiply
    20,179.80x = 30,270.92 × 7,701.01
  4. Step 4: Simplify right side
    20,179.80x = 233,116,543.45
  5. Step 5: Solve for x
    x = 233,116,543.45/20,179.80
  6. Step 6: Final answer
    x = 11,551.97

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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.