Home / 38,219.40-57,329.10-21,306.60

Finding the Fourth Proportional to 38,219.40, 57,329.10 and 21,306.60

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Solution

The fourth proportional to 38,219.40, 57,329.10 and 21,306.60 is: 31,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,219.40 : 57,329.10 = 21,306.60 : x
  2. Step 2: Convert to fraction form
    38,219.40/57,329.10 = 21,306.60/x
  3. Step 3: Cross multiply
    38,219.40x = 57,329.10 × 21,306.60
  4. Step 4: Simplify right side
    38,219.40x = 1,221,488,202.06
  5. Step 5: Solve for x
    x = 1,221,488,202.06/38,219.40
  6. Step 6: Final answer
    x = 31,959.90

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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.