Home / 39,918.11-55,084.47-22,910.38

Finding the Fourth Proportional to 39,918.11, 55,084.47 and 22,910.38

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Solution

The fourth proportional to 39,918.11, 55,084.47 and 22,910.38 is: 31,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.11 : 55,084.47 = 22,910.38 : x
  2. Step 2: Convert to fraction form
    39,918.11/55,084.47 = 22,910.38/x
  3. Step 3: Cross multiply
    39,918.11x = 55,084.47 × 22,910.38
  4. Step 4: Simplify right side
    39,918.11x = 1,262,005,749.82
  5. Step 5: Solve for x
    x = 1,262,005,749.82/39,918.11
  6. Step 6: Final answer
    x = 31,614.87

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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.