Home / 23,151.19-31,948.64-12,540.82

Finding the Fourth Proportional to 23,151.19, 31,948.64 and 12,540.82

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Solution

The fourth proportional to 23,151.19, 31,948.64 and 12,540.82 is: 17,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,151.19 : 31,948.64 = 12,540.82 : x
  2. Step 2: Convert to fraction form
    23,151.19/31,948.64 = 12,540.82/x
  3. Step 3: Cross multiply
    23,151.19x = 31,948.64 × 12,540.82
  4. Step 4: Simplify right side
    23,151.19x = 400,662,107.84
  5. Step 5: Solve for x
    x = 400,662,107.84/23,151.19
  6. Step 6: Final answer
    x = 17,306.33

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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.