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Finding the Fourth Proportional to 39,118.08, 53,982 and 22,350

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Solution

The fourth proportional to 39,118.08, 53,982 and 22,350 is: 30,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,118.08 : 53,982 = 22,350 : x
  2. Step 2: Convert to fraction form
    39,118.08/53,982 = 22,350/x
  3. Step 3: Cross multiply
    39,118.08x = 53,982 × 22,350
  4. Step 4: Simplify right side
    39,118.08x = 1,206,497,700
  5. Step 5: Solve for x
    x = 1,206,497,700/39,118.08
  6. Step 6: Final answer
    x = 30,842.46

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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.