Home / 43,721.47-65,568.23-18,754.82

Finding the Fourth Proportional to 43,721.47, 65,568.23 and 18,754.82

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Solution

The fourth proportional to 43,721.47, 65,568.23 and 18,754.82 is: 28,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,721.47 : 65,568.23 = 18,754.82 : x
  2. Step 2: Convert to fraction form
    43,721.47/65,568.23 = 18,754.82/x
  3. Step 3: Cross multiply
    43,721.47x = 65,568.23 × 18,754.82
  4. Step 4: Simplify right side
    43,721.47x = 1,229,720,167.05
  5. Step 5: Solve for x
    x = 1,229,720,167.05/43,721.47
  6. Step 6: Final answer
    x = 28,126.23

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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.