Home / 39,939.96-55,118.20-22,035.20

Finding the Fourth Proportional to 39,939.96, 55,118.20 and 22,035.20

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Solution

The fourth proportional to 39,939.96, 55,118.20 and 22,035.20 is: 30,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.96 : 55,118.20 = 22,035.20 : x
  2. Step 2: Convert to fraction form
    39,939.96/55,118.20 = 22,035.20/x
  3. Step 3: Cross multiply
    39,939.96x = 55,118.20 × 22,035.20
  4. Step 4: Simplify right side
    39,939.96x = 1,214,540,560.64
  5. Step 5: Solve for x
    x = 1,214,540,560.64/39,939.96
  6. Step 6: Final answer
    x = 30,409.16

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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.