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Finding the Fourth Proportional to 39,398.68, 59,098.56 and 13,103.44

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Solution

The fourth proportional to 39,398.68, 59,098.56 and 13,103.44 is: 19,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.68 : 59,098.56 = 13,103.44 : x
  2. Step 2: Convert to fraction form
    39,398.68/59,098.56 = 13,103.44/x
  3. Step 3: Cross multiply
    39,398.68x = 59,098.56 × 13,103.44
  4. Step 4: Simplify right side
    39,398.68x = 774,394,435.05
  5. Step 5: Solve for x
    x = 774,394,435.05/39,398.68
  6. Step 6: Final answer
    x = 19,655.34

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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.