Home / 22,160.20-33,187.44-12,780.48

Finding the Fourth Proportional to 22,160.20, 33,187.44 and 12,780.48

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Solution

The fourth proportional to 22,160.20, 33,187.44 and 12,780.48 is: 19,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.20 : 33,187.44 = 12,780.48 : x
  2. Step 2: Convert to fraction form
    22,160.20/33,187.44 = 12,780.48/x
  3. Step 3: Cross multiply
    22,160.20x = 33,187.44 × 12,780.48
  4. Step 4: Simplify right side
    22,160.20x = 424,151,413.17
  5. Step 5: Solve for x
    x = 424,151,413.17/22,160.20
  6. Step 6: Final answer
    x = 19,140.23

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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.