Home / 20,010.20-30,010.73-7,531.53

Finding the Fourth Proportional to 20,010.20, 30,010.73 and 7,531.53

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Solution

The fourth proportional to 20,010.20, 30,010.73 and 7,531.53 is: 11,295.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.20 : 30,010.73 = 7,531.53 : x
  2. Step 2: Convert to fraction form
    20,010.20/30,010.73 = 7,531.53/x
  3. Step 3: Cross multiply
    20,010.20x = 30,010.73 × 7,531.53
  4. Step 4: Simplify right side
    20,010.20x = 226,026,675.66
  5. Step 5: Solve for x
    x = 226,026,675.66/20,010.20
  6. Step 6: Final answer
    x = 11,295.58

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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.