Home / 28,151.25-38,839.29-16,214.31

Finding the Fourth Proportional to 28,151.25, 38,839.29 and 16,214.31

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Solution

The fourth proportional to 28,151.25, 38,839.29 and 16,214.31 is: 22,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.25 : 38,839.29 = 16,214.31 : x
  2. Step 2: Convert to fraction form
    28,151.25/38,839.29 = 16,214.31/x
  3. Step 3: Cross multiply
    28,151.25x = 38,839.29 × 16,214.31
  4. Step 4: Simplify right side
    28,151.25x = 629,752,288.24
  5. Step 5: Solve for x
    x = 629,752,288.24/28,151.25
  6. Step 6: Final answer
    x = 22,370.31

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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.