Home / 39,872.56-55,022-22,873.30

Finding the Fourth Proportional to 39,872.56, 55,022 and 22,873.30

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Solution

The fourth proportional to 39,872.56, 55,022 and 22,873.30 is: 31,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.56 : 55,022 = 22,873.30 : x
  2. Step 2: Convert to fraction form
    39,872.56/55,022 = 22,873.30/x
  3. Step 3: Cross multiply
    39,872.56x = 55,022 × 22,873.30
  4. Step 4: Simplify right side
    39,872.56x = 1,258,534,712.60
  5. Step 5: Solve for x
    x = 1,258,534,712.60/39,872.56
  6. Step 6: Final answer
    x = 31,563.93

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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.