Home / 17,921.21-26,873.10-5,438.97

Finding the Fourth Proportional to 17,921.21, 26,873.10 and 5,438.97

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Solution

The fourth proportional to 17,921.21, 26,873.10 and 5,438.97 is: 8,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.21 : 26,873.10 = 5,438.97 : x
  2. Step 2: Convert to fraction form
    17,921.21/26,873.10 = 5,438.97/x
  3. Step 3: Cross multiply
    17,921.21x = 26,873.10 × 5,438.97
  4. Step 4: Simplify right side
    17,921.21x = 146,161,984.71
  5. Step 5: Solve for x
    x = 146,161,984.71/17,921.21
  6. Step 6: Final answer
    x = 8,155.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.