Home / 28,115.65-38,793.19-16,788.82

Finding the Fourth Proportional to 28,115.65, 38,793.19 and 16,788.82

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Solution

The fourth proportional to 28,115.65, 38,793.19 and 16,788.82 is: 23,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.65 : 38,793.19 = 16,788.82 : x
  2. Step 2: Convert to fraction form
    28,115.65/38,793.19 = 16,788.82/x
  3. Step 3: Cross multiply
    28,115.65x = 38,793.19 × 16,788.82
  4. Step 4: Simplify right side
    28,115.65x = 651,291,884.14
  5. Step 5: Solve for x
    x = 651,291,884.14/28,115.65
  6. Step 6: Final answer
    x = 23,164.75

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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.