Home / 23,149.11-31,945.68-12,538.71

Finding the Fourth Proportional to 23,149.11, 31,945.68 and 12,538.71

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Solution

The fourth proportional to 23,149.11, 31,945.68 and 12,538.71 is: 17,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,149.11 : 31,945.68 = 12,538.71 : x
  2. Step 2: Convert to fraction form
    23,149.11/31,945.68 = 12,538.71/x
  3. Step 3: Cross multiply
    23,149.11x = 31,945.68 × 12,538.71
  4. Step 4: Simplify right side
    23,149.11x = 400,557,617.27
  5. Step 5: Solve for x
    x = 400,557,617.27/23,149.11
  6. Step 6: Final answer
    x = 17,303.37

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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.