Home / 39,692.92-54,773.22-21,785.08

Finding the Fourth Proportional to 39,692.92, 54,773.22 and 21,785.08

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Solution

The fourth proportional to 39,692.92, 54,773.22 and 21,785.08 is: 30,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,692.92 : 54,773.22 = 21,785.08 : x
  2. Step 2: Convert to fraction form
    39,692.92/54,773.22 = 21,785.08/x
  3. Step 3: Cross multiply
    39,692.92x = 54,773.22 × 21,785.08
  4. Step 4: Simplify right side
    39,692.92x = 1,193,238,979.56
  5. Step 5: Solve for x
    x = 1,193,238,979.56/39,692.92
  6. Step 6: Final answer
    x = 30,061.76

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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.