Home / 39,965.96-55,143.36-25,619.24

Finding the Fourth Proportional to 39,965.96, 55,143.36 and 25,619.24

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Solution

The fourth proportional to 39,965.96, 55,143.36 and 25,619.24 is: 35,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.96 : 55,143.36 = 25,619.24 : x
  2. Step 2: Convert to fraction form
    39,965.96/55,143.36 = 25,619.24/x
  3. Step 3: Cross multiply
    39,965.96x = 55,143.36 × 25,619.24
  4. Step 4: Simplify right side
    39,965.96x = 1,412,730,974.25
  5. Step 5: Solve for x
    x = 1,412,730,974.25/39,965.96
  6. Step 6: Final answer
    x = 35,348.36

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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.