Home / 39,866.11-55,015.68-21,960.73

Finding the Fourth Proportional to 39,866.11, 55,015.68 and 21,960.73

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Solution

The fourth proportional to 39,866.11, 55,015.68 and 21,960.73 is: 30,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,866.11 : 55,015.68 = 21,960.73 : x
  2. Step 2: Convert to fraction form
    39,866.11/55,015.68 = 21,960.73/x
  3. Step 3: Cross multiply
    39,866.11x = 55,015.68 × 21,960.73
  4. Step 4: Simplify right side
    39,866.11x = 1,208,184,494.25
  5. Step 5: Solve for x
    x = 1,208,184,494.25/39,866.11
  6. Step 6: Final answer
    x = 30,306.05

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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.