Home / 39,948.85-55,128.09-22,043.87

Finding the Fourth Proportional to 39,948.85, 55,128.09 and 22,043.87

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Solution

The fourth proportional to 39,948.85, 55,128.09 and 22,043.87 is: 30,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948.85 : 55,128.09 = 22,043.87 : x
  2. Step 2: Convert to fraction form
    39,948.85/55,128.09 = 22,043.87/x
  3. Step 3: Cross multiply
    39,948.85x = 55,128.09 × 22,043.87
  4. Step 4: Simplify right side
    39,948.85x = 1,215,236,449.31
  5. Step 5: Solve for x
    x = 1,215,236,449.31/39,948.85
  6. Step 6: Final answer
    x = 30,419.81

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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.