Home / 27,434.78-41,153.70-7,711.80

Finding the Fourth Proportional to 27,434.78, 41,153.70 and 7,711.80

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Solution

The fourth proportional to 27,434.78, 41,153.70 and 7,711.80 is: 11,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,434.78 : 41,153.70 = 7,711.80 : x
  2. Step 2: Convert to fraction form
    27,434.78/41,153.70 = 7,711.80/x
  3. Step 3: Cross multiply
    27,434.78x = 41,153.70 × 7,711.80
  4. Step 4: Simplify right side
    27,434.78x = 317,369,103.66
  5. Step 5: Solve for x
    x = 317,369,103.66/27,434.78
  6. Step 6: Final answer
    x = 11,568.13

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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.