Home / 20,345.17-30,522.41-7,865.29

Finding the Fourth Proportional to 20,345.17, 30,522.41 and 7,865.29

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Solution

The fourth proportional to 20,345.17, 30,522.41 and 7,865.29 is: 11,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.17 : 30,522.41 = 7,865.29 : x
  2. Step 2: Convert to fraction form
    20,345.17/30,522.41 = 7,865.29/x
  3. Step 3: Cross multiply
    20,345.17x = 30,522.41 × 7,865.29
  4. Step 4: Simplify right side
    20,345.17x = 240,067,606.15
  5. Step 5: Solve for x
    x = 240,067,606.15/20,345.17
  6. Step 6: Final answer
    x = 11,799.73

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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.