Home / 26,810.54-40,189.65-12,766.79

Finding the Fourth Proportional to 26,810.54, 40,189.65 and 12,766.79

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Solution

The fourth proportional to 26,810.54, 40,189.65 and 12,766.79 is: 19,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,810.54 : 40,189.65 = 12,766.79 : x
  2. Step 2: Convert to fraction form
    26,810.54/40,189.65 = 12,766.79/x
  3. Step 3: Cross multiply
    26,810.54x = 40,189.65 × 12,766.79
  4. Step 4: Simplify right side
    26,810.54x = 513,092,620.78
  5. Step 5: Solve for x
    x = 513,092,620.78/26,810.54
  6. Step 6: Final answer
    x = 19,137.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.