Home / 39,894.38-55,053.50-21,745.27

Finding the Fourth Proportional to 39,894.38, 55,053.50 and 21,745.27

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Solution

The fourth proportional to 39,894.38, 55,053.50 and 21,745.27 is: 30,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.38 : 55,053.50 = 21,745.27 : x
  2. Step 2: Convert to fraction form
    39,894.38/55,053.50 = 21,745.27/x
  3. Step 3: Cross multiply
    39,894.38x = 55,053.50 × 21,745.27
  4. Step 4: Simplify right side
    39,894.38x = 1,197,153,286.21
  5. Step 5: Solve for x
    x = 1,197,153,286.21/39,894.38
  6. Step 6: Final answer
    x = 30,008.07

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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.