Home / 20,239.34-30,340.49-7,084.53

Finding the Fourth Proportional to 20,239.34, 30,340.49 and 7,084.53

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Solution

The fourth proportional to 20,239.34, 30,340.49 and 7,084.53 is: 10,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.34 : 30,340.49 = 7,084.53 : x
  2. Step 2: Convert to fraction form
    20,239.34/30,340.49 = 7,084.53/x
  3. Step 3: Cross multiply
    20,239.34x = 30,340.49 × 7,084.53
  4. Step 4: Simplify right side
    20,239.34x = 214,948,076.20
  5. Step 5: Solve for x
    x = 214,948,076.20/20,239.34
  6. Step 6: Final answer
    x = 10,620.31

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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.