Home / 27,507.40-41,256.54-7,781.44

Finding the Fourth Proportional to 27,507.40, 41,256.54 and 7,781.44

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Solution

The fourth proportional to 27,507.40, 41,256.54 and 7,781.44 is: 11,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,507.40 : 41,256.54 = 7,781.44 : x
  2. Step 2: Convert to fraction form
    27,507.40/41,256.54 = 7,781.44/x
  3. Step 3: Cross multiply
    27,507.40x = 41,256.54 × 7,781.44
  4. Step 4: Simplify right side
    27,507.40x = 321,035,290.62
  5. Step 5: Solve for x
    x = 321,035,290.62/27,507.40
  6. Step 6: Final answer
    x = 11,670.87

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1.5x scale

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.