Home / 28,959.64-39,961.37-16,211.99

Finding the Fourth Proportional to 28,959.64, 39,961.37 and 16,211.99

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Solution

The fourth proportional to 28,959.64, 39,961.37 and 16,211.99 is: 22,370.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.64 : 39,961.37 = 16,211.99 : x
  2. Step 2: Convert to fraction form
    28,959.64/39,961.37 = 16,211.99/x
  3. Step 3: Cross multiply
    28,959.64x = 39,961.37 × 16,211.99
  4. Step 4: Simplify right side
    28,959.64x = 647,853,471.26
  5. Step 5: Solve for x
    x = 647,853,471.26/28,959.64
  6. Step 6: Final answer
    x = 22,370.91

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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.