Home / 28,207.41-38,934.80-16,278.54

Finding the Fourth Proportional to 28,207.41, 38,934.80 and 16,278.54

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Solution

The fourth proportional to 28,207.41, 38,934.80 and 16,278.54 is: 22,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.41 : 38,934.80 = 16,278.54 : x
  2. Step 2: Convert to fraction form
    28,207.41/38,934.80 = 16,278.54/x
  3. Step 3: Cross multiply
    28,207.41x = 38,934.80 × 16,278.54
  4. Step 4: Simplify right side
    28,207.41x = 633,801,699.19
  5. Step 5: Solve for x
    x = 633,801,699.19/28,207.41
  6. Step 6: Final answer
    x = 22,469.33

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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.