Home / 23,391.12-32,280.21-12,781.41

Finding the Fourth Proportional to 23,391.12, 32,280.21 and 12,781.41

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Solution

The fourth proportional to 23,391.12, 32,280.21 and 12,781.41 is: 17,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.12 : 32,280.21 = 12,781.41 : x
  2. Step 2: Convert to fraction form
    23,391.12/32,280.21 = 12,781.41/x
  3. Step 3: Cross multiply
    23,391.12x = 32,280.21 × 12,781.41
  4. Step 4: Simplify right side
    23,391.12x = 412,586,598.90
  5. Step 5: Solve for x
    x = 412,586,598.90/23,391.12
  6. Step 6: Final answer
    x = 17,638.60

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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.