Home / 28,948.88-39,951.21-16,201.80

Finding the Fourth Proportional to 28,948.88, 39,951.21 and 16,201.80

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Solution

The fourth proportional to 28,948.88, 39,951.21 and 16,201.80 is: 22,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.88 : 39,951.21 = 16,201.80 : x
  2. Step 2: Convert to fraction form
    28,948.88/39,951.21 = 16,201.80/x
  3. Step 3: Cross multiply
    28,948.88x = 39,951.21 × 16,201.80
  4. Step 4: Simplify right side
    28,948.88x = 647,281,514.18
  5. Step 5: Solve for x
    x = 647,281,514.18/28,948.88
  6. Step 6: Final answer
    x = 22,359.47

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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.