Home / 20,159.31-30,239.38-7,336.04

Finding the Fourth Proportional to 20,159.31, 30,239.38 and 7,336.04

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Solution

The fourth proportional to 20,159.31, 30,239.38 and 7,336.04 is: 11,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.31 : 30,239.38 = 7,336.04 : x
  2. Step 2: Convert to fraction form
    20,159.31/30,239.38 = 7,336.04/x
  3. Step 3: Cross multiply
    20,159.31x = 30,239.38 × 7,336.04
  4. Step 4: Simplify right side
    20,159.31x = 221,837,286.38
  5. Step 5: Solve for x
    x = 221,837,286.38/20,159.31
  6. Step 6: Final answer
    x = 11,004.21

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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.