Home / 40,321.13-55,641.80-22,415.75

Finding the Fourth Proportional to 40,321.13, 55,641.80 and 22,415.75

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Solution

The fourth proportional to 40,321.13, 55,641.80 and 22,415.75 is: 30,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321.13 : 55,641.80 = 22,415.75 : x
  2. Step 2: Convert to fraction form
    40,321.13/55,641.80 = 22,415.75/x
  3. Step 3: Cross multiply
    40,321.13x = 55,641.80 × 22,415.75
  4. Step 4: Simplify right side
    40,321.13x = 1,247,252,678.35
  5. Step 5: Solve for x
    x = 1,247,252,678.35/40,321.13
  6. Step 6: Final answer
    x = 30,932.98

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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.