Home / 43,531.70-65,297.56-20,145.38

Finding the Fourth Proportional to 43,531.70, 65,297.56 and 20,145.38

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Solution

The fourth proportional to 43,531.70, 65,297.56 and 20,145.38 is: 30,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,531.70 : 65,297.56 = 20,145.38 : x
  2. Step 2: Convert to fraction form
    43,531.70/65,297.56 = 20,145.38/x
  3. Step 3: Cross multiply
    43,531.70x = 65,297.56 × 20,145.38
  4. Step 4: Simplify right side
    43,531.70x = 1,315,444,159.27
  5. Step 5: Solve for x
    x = 1,315,444,159.27/43,531.70
  6. Step 6: Final answer
    x = 30,218.07

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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.