Home / 20,933.71-31,400.52-5,351.29

Finding the Fourth Proportional to 20,933.71, 31,400.52 and 5,351.29

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Solution

The fourth proportional to 20,933.71, 31,400.52 and 5,351.29 is: 8,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.71 : 31,400.52 = 5,351.29 : x
  2. Step 2: Convert to fraction form
    20,933.71/31,400.52 = 5,351.29/x
  3. Step 3: Cross multiply
    20,933.71x = 31,400.52 × 5,351.29
  4. Step 4: Simplify right side
    20,933.71x = 168,033,288.67
  5. Step 5: Solve for x
    x = 168,033,288.67/20,933.71
  6. Step 6: Final answer
    x = 8,026.92

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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.