Home / 20,131.20-30,160.35-16,413.30

Finding the Fourth Proportional to 20,131.20, 30,160.35 and 16,413.30

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Solution

The fourth proportional to 20,131.20, 30,160.35 and 16,413.30 is: 24,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.20 : 30,160.35 = 16,413.30 : x
  2. Step 2: Convert to fraction form
    20,131.20/30,160.35 = 16,413.30/x
  3. Step 3: Cross multiply
    20,131.20x = 30,160.35 × 16,413.30
  4. Step 4: Simplify right side
    20,131.20x = 495,030,872.66
  5. Step 5: Solve for x
    x = 495,030,872.66/20,131.20
  6. Step 6: Final answer
    x = 24,590.23

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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.