Home / 40,149.15-55,400.16-22,245.21

Finding the Fourth Proportional to 40,149.15, 55,400.16 and 22,245.21

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Solution

The fourth proportional to 40,149.15, 55,400.16 and 22,245.21 is: 30,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,149.15 : 55,400.16 = 22,245.21 : x
  2. Step 2: Convert to fraction form
    40,149.15/55,400.16 = 22,245.21/x
  3. Step 3: Cross multiply
    40,149.15x = 55,400.16 × 22,245.21
  4. Step 4: Simplify right side
    40,149.15x = 1,232,388,193.23
  5. Step 5: Solve for x
    x = 1,232,388,193.23/40,149.15
  6. Step 6: Final answer
    x = 30,695.25

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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.