Home / 23,753.55-32,780.42-13,143.93

Finding the Fourth Proportional to 23,753.55, 32,780.42 and 13,143.93

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Solution

The fourth proportional to 23,753.55, 32,780.42 and 13,143.93 is: 18,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,753.55 : 32,780.42 = 13,143.93 : x
  2. Step 2: Convert to fraction form
    23,753.55/32,780.42 = 13,143.93/x
  3. Step 3: Cross multiply
    23,753.55x = 32,780.42 × 13,143.93
  4. Step 4: Simplify right side
    23,753.55x = 430,863,480.13
  5. Step 5: Solve for x
    x = 430,863,480.13/23,753.55
  6. Step 6: Final answer
    x = 18,138.91

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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.