Home / 20,845.29-31,268.09-5,262.92

Finding the Fourth Proportional to 20,845.29, 31,268.09 and 5,262.92

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Solution

The fourth proportional to 20,845.29, 31,268.09 and 5,262.92 is: 7,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.29 : 31,268.09 = 5,262.92 : x
  2. Step 2: Convert to fraction form
    20,845.29/31,268.09 = 5,262.92/x
  3. Step 3: Cross multiply
    20,845.29x = 31,268.09 × 5,262.92
  4. Step 4: Simplify right side
    20,845.29x = 164,561,456.22
  5. Step 5: Solve for x
    x = 164,561,456.22/20,845.29
  6. Step 6: Final answer
    x = 7,894.42

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1.5x scale

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.