Home / 23,391.90-32,280.43-12,781.30

Finding the Fourth Proportional to 23,391.90, 32,280.43 and 12,781.30

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Solution

The fourth proportional to 23,391.90, 32,280.43 and 12,781.30 is: 17,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.90 : 32,280.43 = 12,781.30 : x
  2. Step 2: Convert to fraction form
    23,391.90/32,280.43 = 12,781.30/x
  3. Step 3: Cross multiply
    23,391.90x = 32,280.43 × 12,781.30
  4. Step 4: Simplify right side
    23,391.90x = 412,585,859.96
  5. Step 5: Solve for x
    x = 412,585,859.96/23,391.90
  6. Step 6: Final answer
    x = 17,637.98

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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.