Home / 28,989.28-40,004.56-16,413.76

Finding the Fourth Proportional to 28,989.28, 40,004.56 and 16,413.76

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Solution

The fourth proportional to 28,989.28, 40,004.56 and 16,413.76 is: 22,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.28 : 40,004.56 = 16,413.76 : x
  2. Step 2: Convert to fraction form
    28,989.28/40,004.56 = 16,413.76/x
  3. Step 3: Cross multiply
    28,989.28x = 40,004.56 × 16,413.76
  4. Step 4: Simplify right side
    28,989.28x = 656,625,246.75
  5. Step 5: Solve for x
    x = 656,625,246.75/28,989.28
  6. Step 6: Final answer
    x = 22,650.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.