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Finding the Fourth Proportional to 39,169.92, 54,017.78 and 30,203.22

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Solution

The fourth proportional to 39,169.92, 54,017.78 and 30,203.22 is: 41,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.92 : 54,017.78 = 30,203.22 : x
  2. Step 2: Convert to fraction form
    39,169.92/54,017.78 = 30,203.22/x
  3. Step 3: Cross multiply
    39,169.92x = 54,017.78 × 30,203.22
  4. Step 4: Simplify right side
    39,169.92x = 1,631,510,742.24
  5. Step 5: Solve for x
    x = 1,631,510,742.24/39,169.92
  6. Step 6: Final answer
    x = 41,652.13

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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.