Home / 20,252.31-30,377.53-7,104.79

Finding the Fourth Proportional to 20,252.31, 30,377.53 and 7,104.79

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Solution

The fourth proportional to 20,252.31, 30,377.53 and 7,104.79 is: 10,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.31 : 30,377.53 = 7,104.79 : x
  2. Step 2: Convert to fraction form
    20,252.31/30,377.53 = 7,104.79/x
  3. Step 3: Cross multiply
    20,252.31x = 30,377.53 × 7,104.79
  4. Step 4: Simplify right side
    20,252.31x = 215,825,971.37
  5. Step 5: Solve for x
    x = 215,825,971.37/20,252.31
  6. Step 6: Final answer
    x = 10,656.86

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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.