Home / 20,701.13-31,052.69-5,912.20

Finding the Fourth Proportional to 20,701.13, 31,052.69 and 5,912.20

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Solution

The fourth proportional to 20,701.13, 31,052.69 and 5,912.20 is: 8,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.13 : 31,052.69 = 5,912.20 : x
  2. Step 2: Convert to fraction form
    20,701.13/31,052.69 = 5,912.20/x
  3. Step 3: Cross multiply
    20,701.13x = 31,052.69 × 5,912.20
  4. Step 4: Simplify right side
    20,701.13x = 183,589,713.82
  5. Step 5: Solve for x
    x = 183,589,713.82/20,701.13
  6. Step 6: Final answer
    x = 8,868.58

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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.