Home / 28,292.58-39,046.73-15,717.33

Finding the Fourth Proportional to 28,292.58, 39,046.73 and 15,717.33

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Solution

The fourth proportional to 28,292.58, 39,046.73 and 15,717.33 is: 21,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.58 : 39,046.73 = 15,717.33 : x
  2. Step 2: Convert to fraction form
    28,292.58/39,046.73 = 15,717.33/x
  3. Step 3: Cross multiply
    28,292.58x = 39,046.73 × 15,717.33
  4. Step 4: Simplify right side
    28,292.58x = 613,710,262.24
  5. Step 5: Solve for x
    x = 613,710,262.24/28,292.58
  6. Step 6: Final answer
    x = 21,691.56

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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.