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Finding the Fourth Proportional to 34,642.78, 47,807.07 and 18,727.23

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Solution

The fourth proportional to 34,642.78, 47,807.07 and 18,727.23 is: 25,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,642.78 : 47,807.07 = 18,727.23 : x
  2. Step 2: Convert to fraction form
    34,642.78/47,807.07 = 18,727.23/x
  3. Step 3: Cross multiply
    34,642.78x = 47,807.07 × 18,727.23
  4. Step 4: Simplify right side
    34,642.78x = 895,293,995.52
  5. Step 5: Solve for x
    x = 895,293,995.52/34,642.78
  6. Step 6: Final answer
    x = 25,843.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.