Home / 28,794.12-39,743.31-18,747.66

Finding the Fourth Proportional to 28,794.12, 39,743.31 and 18,747.66

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Solution

The fourth proportional to 28,794.12, 39,743.31 and 18,747.66 is: 25,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,794.12 : 39,743.31 = 18,747.66 : x
  2. Step 2: Convert to fraction form
    28,794.12/39,743.31 = 18,747.66/x
  3. Step 3: Cross multiply
    28,794.12x = 39,743.31 × 18,747.66
  4. Step 4: Simplify right side
    28,794.12x = 745,094,063.15
  5. Step 5: Solve for x
    x = 745,094,063.15/28,794.12
  6. Step 6: Final answer
    x = 25,876.60

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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.