Home / 43,891.28-65,836.80-20,534.16

Finding the Fourth Proportional to 43,891.28, 65,836.80 and 20,534.16

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Solution

The fourth proportional to 43,891.28, 65,836.80 and 20,534.16 is: 30,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,891.28 : 65,836.80 = 20,534.16 : x
  2. Step 2: Convert to fraction form
    43,891.28/65,836.80 = 20,534.16/x
  3. Step 3: Cross multiply
    43,891.28x = 65,836.80 × 20,534.16
  4. Step 4: Simplify right side
    43,891.28x = 1,351,903,385.09
  5. Step 5: Solve for x
    x = 1,351,903,385.09/43,891.28
  6. Step 6: Final answer
    x = 30,801.18

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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.