Home / 20,864.96-31,302.56-6,074

Finding the Fourth Proportional to 20,864.96, 31,302.56 and 6,074

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Solution

The fourth proportional to 20,864.96, 31,302.56 and 6,074 is: 9,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.96 : 31,302.56 = 6,074 : x
  2. Step 2: Convert to fraction form
    20,864.96/31,302.56 = 6,074/x
  3. Step 3: Cross multiply
    20,864.96x = 31,302.56 × 6,074
  4. Step 4: Simplify right side
    20,864.96x = 190,131,749.44
  5. Step 5: Solve for x
    x = 190,131,749.44/20,864.96
  6. Step 6: Final answer
    x = 9,112.49

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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.