Home / 40,390.14-55,739.16-22,485.90

Finding the Fourth Proportional to 40,390.14, 55,739.16 and 22,485.90

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Solution

The fourth proportional to 40,390.14, 55,739.16 and 22,485.90 is: 31,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.14 : 55,739.16 = 22,485.90 : x
  2. Step 2: Convert to fraction form
    40,390.14/55,739.16 = 22,485.90/x
  3. Step 3: Cross multiply
    40,390.14x = 55,739.16 × 22,485.90
  4. Step 4: Simplify right side
    40,390.14x = 1,253,345,177.84
  5. Step 5: Solve for x
    x = 1,253,345,177.84/40,390.14
  6. Step 6: Final answer
    x = 31,030.97

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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.