Home / 40,259.92-55,610.98-30,641.38

Finding the Fourth Proportional to 40,259.92, 55,610.98 and 30,641.38

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Solution

The fourth proportional to 40,259.92, 55,610.98 and 30,641.38 is: 42,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,259.92 : 55,610.98 = 30,641.38 : x
  2. Step 2: Convert to fraction form
    40,259.92/55,610.98 = 30,641.38/x
  3. Step 3: Cross multiply
    40,259.92x = 55,610.98 × 30,641.38
  4. Step 4: Simplify right side
    40,259.92x = 1,703,997,170.35
  5. Step 5: Solve for x
    x = 1,703,997,170.35/40,259.92
  6. Step 6: Final answer
    x = 42,324.90

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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.