Home / 17,732.20-26,540.70-13,815.40

Finding the Fourth Proportional to 17,732.20, 26,540.70 and 13,815.40

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Solution

The fourth proportional to 17,732.20, 26,540.70 and 13,815.40 is: 20,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,732.20 : 26,540.70 = 13,815.40 : x
  2. Step 2: Convert to fraction form
    17,732.20/26,540.70 = 13,815.40/x
  3. Step 3: Cross multiply
    17,732.20x = 26,540.70 × 13,815.40
  4. Step 4: Simplify right side
    17,732.20x = 366,670,386.78
  5. Step 5: Solve for x
    x = 366,670,386.78/17,732.20
  6. Step 6: Final answer
    x = 20,678.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.