Home / 28,208.66-38,936.52-16,279.79

Finding the Fourth Proportional to 28,208.66, 38,936.52 and 16,279.79

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Solution

The fourth proportional to 28,208.66, 38,936.52 and 16,279.79 is: 22,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.66 : 38,936.52 = 16,279.79 : x
  2. Step 2: Convert to fraction form
    28,208.66/38,936.52 = 16,279.79/x
  3. Step 3: Cross multiply
    28,208.66x = 38,936.52 × 16,279.79
  4. Step 4: Simplify right side
    28,208.66x = 633,878,174.25
  5. Step 5: Solve for x
    x = 633,878,174.25/28,208.66
  6. Step 6: Final answer
    x = 22,471.05

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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.