Home / 39,969.82-55,165.08-38,198.38

Finding the Fourth Proportional to 39,969.82, 55,165.08 and 38,198.38

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Solution

The fourth proportional to 39,969.82, 55,165.08 and 38,198.38 is: 52,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.82 : 55,165.08 = 38,198.38 : x
  2. Step 2: Convert to fraction form
    39,969.82/55,165.08 = 38,198.38/x
  3. Step 3: Cross multiply
    39,969.82x = 55,165.08 × 38,198.38
  4. Step 4: Simplify right side
    39,969.82x = 2,107,216,688.57
  5. Step 5: Solve for x
    x = 2,107,216,688.57/39,969.82
  6. Step 6: Final answer
    x = 52,720.19

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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.