Home / 20,668.38-30,999.26-5,672.00

Finding the Fourth Proportional to 20,668.38, 30,999.26 and 5,672.00

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Solution

The fourth proportional to 20,668.38, 30,999.26 and 5,672.00 is: 8,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.38 : 30,999.26 = 5,672.00 : x
  2. Step 2: Convert to fraction form
    20,668.38/30,999.26 = 5,672.00/x
  3. Step 3: Cross multiply
    20,668.38x = 30,999.26 × 5,672.00
  4. Step 4: Simplify right side
    20,668.38x = 175,827,775.31
  5. Step 5: Solve for x
    x = 175,827,775.31/20,668.38
  6. Step 6: Final answer
    x = 8,507.09

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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.