Home / 30,149.50-41,604.20-16,721.32

Finding the Fourth Proportional to 30,149.50, 41,604.20 and 16,721.32

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Solution

The fourth proportional to 30,149.50, 41,604.20 and 16,721.32 is: 23,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.50 : 41,604.20 = 16,721.32 : x
  2. Step 2: Convert to fraction form
    30,149.50/41,604.20 = 16,721.32/x
  3. Step 3: Cross multiply
    30,149.50x = 41,604.20 × 16,721.32
  4. Step 4: Simplify right side
    30,149.50x = 695,677,141.54
  5. Step 5: Solve for x
    x = 695,677,141.54/30,149.50
  6. Step 6: Final answer
    x = 23,074.25

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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.