Home / 23,142.30-31,936.32-12,531.93

Finding the Fourth Proportional to 23,142.30, 31,936.32 and 12,531.93

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Solution

The fourth proportional to 23,142.30, 31,936.32 and 12,531.93 is: 17,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,142.30 : 31,936.32 = 12,531.93 : x
  2. Step 2: Convert to fraction form
    23,142.30/31,936.32 = 12,531.93/x
  3. Step 3: Cross multiply
    23,142.30x = 31,936.32 × 12,531.93
  4. Step 4: Simplify right side
    23,142.30x = 400,223,726.70
  5. Step 5: Solve for x
    x = 400,223,726.70/23,142.30
  6. Step 6: Final answer
    x = 17,294.03

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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.