Home / 23,689.28-32,691.12-13,078.64

Finding the Fourth Proportional to 23,689.28, 32,691.12 and 13,078.64

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Solution

The fourth proportional to 23,689.28, 32,691.12 and 13,078.64 is: 18,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,689.28 : 32,691.12 = 13,078.64 : x
  2. Step 2: Convert to fraction form
    23,689.28/32,691.12 = 13,078.64/x
  3. Step 3: Cross multiply
    23,689.28x = 32,691.12 × 13,078.64
  4. Step 4: Simplify right side
    23,689.28x = 427,555,389.68
  5. Step 5: Solve for x
    x = 427,555,389.68/23,689.28
  6. Step 6: Final answer
    x = 18,048.48

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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.