Home / 20,948.19-31,404.57-9,093.05

Finding the Fourth Proportional to 20,948.19, 31,404.57 and 9,093.05

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Solution

The fourth proportional to 20,948.19, 31,404.57 and 9,093.05 is: 13,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.19 : 31,404.57 = 9,093.05 : x
  2. Step 2: Convert to fraction form
    20,948.19/31,404.57 = 9,093.05/x
  3. Step 3: Cross multiply
    20,948.19x = 31,404.57 × 9,093.05
  4. Step 4: Simplify right side
    20,948.19x = 285,563,369.65
  5. Step 5: Solve for x
    x = 285,563,369.65/20,948.19
  6. Step 6: Final answer
    x = 13,631.89

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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.