Home / 20,535.27-30,654.36-18,044.15

Finding the Fourth Proportional to 20,535.27, 30,654.36 and 18,044.15

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Solution

The fourth proportional to 20,535.27, 30,654.36 and 18,044.15 is: 26,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.27 : 30,654.36 = 18,044.15 : x
  2. Step 2: Convert to fraction form
    20,535.27/30,654.36 = 18,044.15/x
  3. Step 3: Cross multiply
    20,535.27x = 30,654.36 × 18,044.15
  4. Step 4: Simplify right side
    20,535.27x = 553,131,716.72
  5. Step 5: Solve for x
    x = 553,131,716.72/20,535.27
  6. Step 6: Final answer
    x = 26,935.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.