Home / 23,391.38-32,278.92-12,779.06

Finding the Fourth Proportional to 23,391.38, 32,278.92 and 12,779.06

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Solution

The fourth proportional to 23,391.38, 32,278.92 and 12,779.06 is: 17,634.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.38 : 32,278.92 = 12,779.06 : x
  2. Step 2: Convert to fraction form
    23,391.38/32,278.92 = 12,779.06/x
  3. Step 3: Cross multiply
    23,391.38x = 32,278.92 × 12,779.06
  4. Step 4: Simplify right side
    23,391.38x = 412,494,255.42
  5. Step 5: Solve for x
    x = 412,494,255.42/23,391.38
  6. Step 6: Final answer
    x = 17,634.46

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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.