Home / 30,149.20-41,605.50-16,720.48

Finding the Fourth Proportional to 30,149.20, 41,605.50 and 16,720.48

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Solution

The fourth proportional to 30,149.20, 41,605.50 and 16,720.48 is: 23,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.20 : 41,605.50 = 16,720.48 : x
  2. Step 2: Convert to fraction form
    30,149.20/41,605.50 = 16,720.48/x
  3. Step 3: Cross multiply
    30,149.20x = 41,605.50 × 16,720.48
  4. Step 4: Simplify right side
    30,149.20x = 695,663,930.64
  5. Step 5: Solve for x
    x = 695,663,930.64/30,149.20
  6. Step 6: Final answer
    x = 23,074.04

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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.