Home / 23,391.40-32,280.60-12,781.48

Finding the Fourth Proportional to 23,391.40, 32,280.60 and 12,781.48

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Solution

The fourth proportional to 23,391.40, 32,280.60 and 12,781.48 is: 17,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.40 : 32,280.60 = 12,781.48 : x
  2. Step 2: Convert to fraction form
    23,391.40/32,280.60 = 12,781.48/x
  3. Step 3: Cross multiply
    23,391.40x = 32,280.60 × 12,781.48
  4. Step 4: Simplify right side
    23,391.40x = 412,593,843.29
  5. Step 5: Solve for x
    x = 412,593,843.29/23,391.40
  6. Step 6: Final answer
    x = 17,638.70

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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.