Home / 27,135.62-40,700.29-7,415.76

Finding the Fourth Proportional to 27,135.62, 40,700.29 and 7,415.76

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Solution

The fourth proportional to 27,135.62, 40,700.29 and 7,415.76 is: 11,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.62 : 40,700.29 = 7,415.76 : x
  2. Step 2: Convert to fraction form
    27,135.62/40,700.29 = 7,415.76/x
  3. Step 3: Cross multiply
    27,135.62x = 40,700.29 × 7,415.76
  4. Step 4: Simplify right side
    27,135.62x = 301,823,582.57
  5. Step 5: Solve for x
    x = 301,823,582.57/27,135.62
  6. Step 6: Final answer
    x = 11,122.78

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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.