Home / 39,148.33-58,728.62-12,847.09

Finding the Fourth Proportional to 39,148.33, 58,728.62 and 12,847.09

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Solution

The fourth proportional to 39,148.33, 58,728.62 and 12,847.09 is: 19,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,148.33 : 58,728.62 = 12,847.09 : x
  2. Step 2: Convert to fraction form
    39,148.33/58,728.62 = 12,847.09/x
  3. Step 3: Cross multiply
    39,148.33x = 58,728.62 × 12,847.09
  4. Step 4: Simplify right side
    39,148.33x = 754,491,866.72
  5. Step 5: Solve for x
    x = 754,491,866.72/39,148.33
  6. Step 6: Final answer
    x = 19,272.65

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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.