Home / 28,710.61-39,619.91-15,963.14

Finding the Fourth Proportional to 28,710.61, 39,619.91 and 15,963.14

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Solution

The fourth proportional to 28,710.61, 39,619.91 and 15,963.14 is: 22,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.61 : 39,619.91 = 15,963.14 : x
  2. Step 2: Convert to fraction form
    28,710.61/39,619.91 = 15,963.14/x
  3. Step 3: Cross multiply
    28,710.61x = 39,619.91 × 15,963.14
  4. Step 4: Simplify right side
    28,710.61x = 632,458,170.12
  5. Step 5: Solve for x
    x = 632,458,170.12/28,710.61
  6. Step 6: Final answer
    x = 22,028.73

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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.