Home / 20,197.05-30,281.52-8,946.28

Finding the Fourth Proportional to 20,197.05, 30,281.52 and 8,946.28

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Solution

The fourth proportional to 20,197.05, 30,281.52 and 8,946.28 is: 13,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.05 : 30,281.52 = 8,946.28 : x
  2. Step 2: Convert to fraction form
    20,197.05/30,281.52 = 8,946.28/x
  3. Step 3: Cross multiply
    20,197.05x = 30,281.52 × 8,946.28
  4. Step 4: Simplify right side
    20,197.05x = 270,906,921.05
  5. Step 5: Solve for x
    x = 270,906,921.05/20,197.05
  6. Step 6: Final answer
    x = 13,413.19

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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.