Home / 31,681.38-43,720.68-17,535.54

Finding the Fourth Proportional to 31,681.38, 43,720.68 and 17,535.54

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Solution

The fourth proportional to 31,681.38, 43,720.68 and 17,535.54 is: 24,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.38 : 43,720.68 = 17,535.54 : x
  2. Step 2: Convert to fraction form
    31,681.38/43,720.68 = 17,535.54/x
  3. Step 3: Cross multiply
    31,681.38x = 43,720.68 × 17,535.54
  4. Step 4: Simplify right side
    31,681.38x = 766,665,732.97
  5. Step 5: Solve for x
    x = 766,665,732.97/31,681.38
  6. Step 6: Final answer
    x = 24,199.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.