Home / 27,320.78-40,981.22-7,599.36

Finding the Fourth Proportional to 27,320.78, 40,981.22 and 7,599.36

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Solution

The fourth proportional to 27,320.78, 40,981.22 and 7,599.36 is: 11,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.78 : 40,981.22 = 7,599.36 : x
  2. Step 2: Convert to fraction form
    27,320.78/40,981.22 = 7,599.36/x
  3. Step 3: Cross multiply
    27,320.78x = 40,981.22 × 7,599.36
  4. Step 4: Simplify right side
    27,320.78x = 311,431,044.02
  5. Step 5: Solve for x
    x = 311,431,044.02/27,320.78
  6. Step 6: Final answer
    x = 11,399.05

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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.