Home / 23,731.66-32,749.68-13,121.20

Finding the Fourth Proportional to 23,731.66, 32,749.68 and 13,121.20

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Solution

The fourth proportional to 23,731.66, 32,749.68 and 13,121.20 is: 18,107.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,731.66 : 32,749.68 = 13,121.20 : x
  2. Step 2: Convert to fraction form
    23,731.66/32,749.68 = 13,121.20/x
  3. Step 3: Cross multiply
    23,731.66x = 32,749.68 × 13,121.20
  4. Step 4: Simplify right side
    23,731.66x = 429,715,101.22
  5. Step 5: Solve for x
    x = 429,715,101.22/23,731.66
  6. Step 6: Final answer
    x = 18,107.25

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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.