Home / 20,747.38-31,122.48-5,955.16

Finding the Fourth Proportional to 20,747.38, 31,122.48 and 5,955.16

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Solution

The fourth proportional to 20,747.38, 31,122.48 and 5,955.16 is: 8,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.38 : 31,122.48 = 5,955.16 : x
  2. Step 2: Convert to fraction form
    20,747.38/31,122.48 = 5,955.16/x
  3. Step 3: Cross multiply
    20,747.38x = 31,122.48 × 5,955.16
  4. Step 4: Simplify right side
    20,747.38x = 185,339,192.38
  5. Step 5: Solve for x
    x = 185,339,192.38/20,747.38
  6. Step 6: Final answer
    x = 8,933.14

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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.