Home / 43,542.36-65,284.38-20,156.04

Finding the Fourth Proportional to 43,542.36, 65,284.38 and 20,156.04

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Solution

The fourth proportional to 43,542.36, 65,284.38 and 20,156.04 is: 30,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,542.36 : 65,284.38 = 20,156.04 : x
  2. Step 2: Convert to fraction form
    43,542.36/65,284.38 = 20,156.04/x
  3. Step 3: Cross multiply
    43,542.36x = 65,284.38 × 20,156.04
  4. Step 4: Simplify right side
    43,542.36x = 1,315,874,574.66
  5. Step 5: Solve for x
    x = 1,315,874,574.66/43,542.36
  6. Step 6: Final answer
    x = 30,220.56

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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.