Home / 28,963.83-39,960.79-16,215.14

Finding the Fourth Proportional to 28,963.83, 39,960.79 and 16,215.14

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Solution

The fourth proportional to 28,963.83, 39,960.79 and 16,215.14 is: 22,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.83 : 39,960.79 = 16,215.14 : x
  2. Step 2: Convert to fraction form
    28,963.83/39,960.79 = 16,215.14/x
  3. Step 3: Cross multiply
    28,963.83x = 39,960.79 × 16,215.14
  4. Step 4: Simplify right side
    28,963.83x = 647,969,804.36
  5. Step 5: Solve for x
    x = 647,969,804.36/28,963.83
  6. Step 6: Final answer
    x = 22,371.69

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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.