Home / 15,489.20-23,233.80-5,628.80

Finding the Fourth Proportional to 15,489.20, 23,233.80 and 5,628.80

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Solution

The fourth proportional to 15,489.20, 23,233.80 and 5,628.80 is: 8,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.20 : 23,233.80 = 5,628.80 : x
  2. Step 2: Convert to fraction form
    15,489.20/23,233.80 = 5,628.80/x
  3. Step 3: Cross multiply
    15,489.20x = 23,233.80 × 5,628.80
  4. Step 4: Simplify right side
    15,489.20x = 130,778,413.44
  5. Step 5: Solve for x
    x = 130,778,413.44/15,489.20
  6. Step 6: Final answer
    x = 8,443.20

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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.