Home / 23,729.78-32,747.76-13,120.13

Finding the Fourth Proportional to 23,729.78, 32,747.76 and 13,120.13

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Solution

The fourth proportional to 23,729.78, 32,747.76 and 13,120.13 is: 18,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,729.78 : 32,747.76 = 13,120.13 : x
  2. Step 2: Convert to fraction form
    23,729.78/32,747.76 = 13,120.13/x
  3. Step 3: Cross multiply
    23,729.78x = 32,747.76 × 13,120.13
  4. Step 4: Simplify right side
    23,729.78x = 429,654,950.28
  5. Step 5: Solve for x
    x = 429,654,950.28/23,729.78
  6. Step 6: Final answer
    x = 18,106.15

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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.