Home / 39,928.32-55,101.38-22,022.87

Finding the Fourth Proportional to 39,928.32, 55,101.38 and 22,022.87

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Solution

The fourth proportional to 39,928.32, 55,101.38 and 22,022.87 is: 30,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.32 : 55,101.38 = 22,022.87 : x
  2. Step 2: Convert to fraction form
    39,928.32/55,101.38 = 22,022.87/x
  3. Step 3: Cross multiply
    39,928.32x = 55,101.38 × 22,022.87
  4. Step 4: Simplify right side
    39,928.32x = 1,213,490,142.94
  5. Step 5: Solve for x
    x = 1,213,490,142.94/39,928.32
  6. Step 6: Final answer
    x = 30,391.72

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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.