Home / 27,987.60-41,981.40-26,383.80

Finding the Fourth Proportional to 27,987.60, 41,981.40 and 26,383.80

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Solution

The fourth proportional to 27,987.60, 41,981.40 and 26,383.80 is: 39,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.60 : 41,981.40 = 26,383.80 : x
  2. Step 2: Convert to fraction form
    27,987.60/41,981.40 = 26,383.80/x
  3. Step 3: Cross multiply
    27,987.60x = 41,981.40 × 26,383.80
  4. Step 4: Simplify right side
    27,987.60x = 1,107,628,861.32
  5. Step 5: Solve for x
    x = 1,107,628,861.32/27,987.60
  6. Step 6: Final answer
    x = 39,575.70

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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.