Home / 26,580.90-39,865.84-11,780.37

Finding the Fourth Proportional to 26,580.90, 39,865.84 and 11,780.37

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Solution

The fourth proportional to 26,580.90, 39,865.84 and 11,780.37 is: 17,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,580.90 : 39,865.84 = 11,780.37 : x
  2. Step 2: Convert to fraction form
    26,580.90/39,865.84 = 11,780.37/x
  3. Step 3: Cross multiply
    26,580.90x = 39,865.84 × 11,780.37
  4. Step 4: Simplify right side
    26,580.90x = 469,634,345.56
  5. Step 5: Solve for x
    x = 469,634,345.56/26,580.90
  6. Step 6: Final answer
    x = 17,668.11

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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.