Home / 40,383.88-55,728.12-22,478.38

Finding the Fourth Proportional to 40,383.88, 55,728.12 and 22,478.38

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Solution

The fourth proportional to 40,383.88, 55,728.12 and 22,478.38 is: 31,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,383.88 : 55,728.12 = 22,478.38 : x
  2. Step 2: Convert to fraction form
    40,383.88/55,728.12 = 22,478.38/x
  3. Step 3: Cross multiply
    40,383.88x = 55,728.12 × 22,478.38
  4. Step 4: Simplify right side
    40,383.88x = 1,252,677,858.05
  5. Step 5: Solve for x
    x = 1,252,677,858.05/40,383.88
  6. Step 6: Final answer
    x = 31,019.25

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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.