Home / 29,119.78-43,681.51-7,772.09

Finding the Fourth Proportional to 29,119.78, 43,681.51 and 7,772.09

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Solution

The fourth proportional to 29,119.78, 43,681.51 and 7,772.09 is: 11,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,119.78 : 43,681.51 = 7,772.09 : x
  2. Step 2: Convert to fraction form
    29,119.78/43,681.51 = 7,772.09/x
  3. Step 3: Cross multiply
    29,119.78x = 43,681.51 × 7,772.09
  4. Step 4: Simplify right side
    29,119.78x = 339,496,716.83
  5. Step 5: Solve for x
    x = 339,496,716.83/29,119.78
  6. Step 6: Final answer
    x = 11,658.63

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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.