Home / 40,485.54-55,870.13-22,581.69

Finding the Fourth Proportional to 40,485.54, 55,870.13 and 22,581.69

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Solution

The fourth proportional to 40,485.54, 55,870.13 and 22,581.69 is: 31,162.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.54 : 55,870.13 = 22,581.69 : x
  2. Step 2: Convert to fraction form
    40,485.54/55,870.13 = 22,581.69/x
  3. Step 3: Cross multiply
    40,485.54x = 55,870.13 × 22,581.69
  4. Step 4: Simplify right side
    40,485.54x = 1,261,641,843.01
  5. Step 5: Solve for x
    x = 1,261,641,843.01/40,485.54
  6. Step 6: Final answer
    x = 31,162.78

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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.