Home / 20,727.39-31,065.06-8,867.24

Finding the Fourth Proportional to 20,727.39, 31,065.06 and 8,867.24

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Solution

The fourth proportional to 20,727.39, 31,065.06 and 8,867.24 is: 13,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.39 : 31,065.06 = 8,867.24 : x
  2. Step 2: Convert to fraction form
    20,727.39/31,065.06 = 8,867.24/x
  3. Step 3: Cross multiply
    20,727.39x = 31,065.06 × 8,867.24
  4. Step 4: Simplify right side
    20,727.39x = 275,461,342.63
  5. Step 5: Solve for x
    x = 275,461,342.63/20,727.39
  6. Step 6: Final answer
    x = 13,289.73

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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.