Home / 19,010.20-28,539.60-10,132.60

Finding the Fourth Proportional to 19,010.20, 28,539.60 and 10,132.60

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Solution

The fourth proportional to 19,010.20, 28,539.60 and 10,132.60 is: 15,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.20 : 28,539.60 = 10,132.60 : x
  2. Step 2: Convert to fraction form
    19,010.20/28,539.60 = 10,132.60/x
  3. Step 3: Cross multiply
    19,010.20x = 28,539.60 × 10,132.60
  4. Step 4: Simplify right side
    19,010.20x = 289,180,350.96
  5. Step 5: Solve for x
    x = 289,180,350.96/19,010.20
  6. Step 6: Final answer
    x = 15,211.85

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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.