Home / 40,108.15-55,348.88-22,203.91

Finding the Fourth Proportional to 40,108.15, 55,348.88 and 22,203.91

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Solution

The fourth proportional to 40,108.15, 55,348.88 and 22,203.91 is: 30,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.15 : 55,348.88 = 22,203.91 : x
  2. Step 2: Convert to fraction form
    40,108.15/55,348.88 = 22,203.91/x
  3. Step 3: Cross multiply
    40,108.15x = 55,348.88 × 22,203.91
  4. Step 4: Simplify right side
    40,108.15x = 1,228,961,550.12
  5. Step 5: Solve for x
    x = 1,228,961,550.12/40,108.15
  6. Step 6: Final answer
    x = 30,641.19

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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.