Home / 20,155.28-30,233.60-7,673.43

Finding the Fourth Proportional to 20,155.28, 30,233.60 and 7,673.43

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Solution

The fourth proportional to 20,155.28, 30,233.60 and 7,673.43 is: 11,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.28 : 30,233.60 = 7,673.43 : x
  2. Step 2: Convert to fraction form
    20,155.28/30,233.60 = 7,673.43/x
  3. Step 3: Cross multiply
    20,155.28x = 30,233.60 × 7,673.43
  4. Step 4: Simplify right side
    20,155.28x = 231,995,413.25
  5. Step 5: Solve for x
    x = 231,995,413.25/20,155.28
  6. Step 6: Final answer
    x = 11,510.40

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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.