Home / 28,277.92-39,052.56-21,193.12

Finding the Fourth Proportional to 28,277.92, 39,052.56 and 21,193.12

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Solution

The fourth proportional to 28,277.92, 39,052.56 and 21,193.12 is: 29,268.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.92 : 39,052.56 = 21,193.12 : x
  2. Step 2: Convert to fraction form
    28,277.92/39,052.56 = 21,193.12/x
  3. Step 3: Cross multiply
    28,277.92x = 39,052.56 × 21,193.12
  4. Step 4: Simplify right side
    28,277.92x = 827,645,590.39
  5. Step 5: Solve for x
    x = 827,645,590.39/28,277.92
  6. Step 6: Final answer
    x = 29,268.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.