Home / 23,161.71-31,963.19-12,551.28

Finding the Fourth Proportional to 23,161.71, 31,963.19 and 12,551.28

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Solution

The fourth proportional to 23,161.71, 31,963.19 and 12,551.28 is: 17,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,161.71 : 31,963.19 = 12,551.28 : x
  2. Step 2: Convert to fraction form
    23,161.71/31,963.19 = 12,551.28/x
  3. Step 3: Cross multiply
    23,161.71x = 31,963.19 × 12,551.28
  4. Step 4: Simplify right side
    23,161.71x = 401,178,947.38
  5. Step 5: Solve for x
    x = 401,178,947.38/23,161.71
  6. Step 6: Final answer
    x = 17,320.78

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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.