Home / 20,729.09-31,084.49-5,934.65

Finding the Fourth Proportional to 20,729.09, 31,084.49 and 5,934.65

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Solution

The fourth proportional to 20,729.09, 31,084.49 and 5,934.65 is: 8,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.09 : 31,084.49 = 5,934.65 : x
  2. Step 2: Convert to fraction form
    20,729.09/31,084.49 = 5,934.65/x
  3. Step 3: Cross multiply
    20,729.09x = 31,084.49 × 5,934.65
  4. Step 4: Simplify right side
    20,729.09x = 184,475,383.48
  5. Step 5: Solve for x
    x = 184,475,383.48/20,729.09
  6. Step 6: Final answer
    x = 8,899.35

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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.