Home / 39,660.13-54,734.43-21,758.83

Finding the Fourth Proportional to 39,660.13, 54,734.43 and 21,758.83

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Solution

The fourth proportional to 39,660.13, 54,734.43 and 21,758.83 is: 30,029.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,660.13 : 54,734.43 = 21,758.83 : x
  2. Step 2: Convert to fraction form
    39,660.13/54,734.43 = 21,758.83/x
  3. Step 3: Cross multiply
    39,660.13x = 54,734.43 × 21,758.83
  4. Step 4: Simplify right side
    39,660.13x = 1,190,957,102.28
  5. Step 5: Solve for x
    x = 1,190,957,102.28/39,660.13
  6. Step 6: Final answer
    x = 30,029.08

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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.