Home / 20,833.44-31,226.16-11,580.96

Finding the Fourth Proportional to 20,833.44, 31,226.16 and 11,580.96

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Solution

The fourth proportional to 20,833.44, 31,226.16 and 11,580.96 is: 17,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.44 : 31,226.16 = 11,580.96 : x
  2. Step 2: Convert to fraction form
    20,833.44/31,226.16 = 11,580.96/x
  3. Step 3: Cross multiply
    20,833.44x = 31,226.16 × 11,580.96
  4. Step 4: Simplify right side
    20,833.44x = 361,628,909.91
  5. Step 5: Solve for x
    x = 361,628,909.91/20,833.44
  6. Step 6: Final answer
    x = 17,358.10

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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.