Home / 28,519.07-39,356.43-15,943.82

Finding the Fourth Proportional to 28,519.07, 39,356.43 and 15,943.82

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Solution

The fourth proportional to 28,519.07, 39,356.43 and 15,943.82 is: 22,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.07 : 39,356.43 = 15,943.82 : x
  2. Step 2: Convert to fraction form
    28,519.07/39,356.43 = 15,943.82/x
  3. Step 3: Cross multiply
    28,519.07x = 39,356.43 × 15,943.82
  4. Step 4: Simplify right side
    28,519.07x = 627,491,835.76
  5. Step 5: Solve for x
    x = 627,491,835.76/28,519.07
  6. Step 6: Final answer
    x = 22,002.53

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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.