Home / 30,808.11-42,517.16-17,374.46

Finding the Fourth Proportional to 30,808.11, 42,517.16 and 17,374.46

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Solution

The fourth proportional to 30,808.11, 42,517.16 and 17,374.46 is: 23,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.11 : 42,517.16 = 17,374.46 : x
  2. Step 2: Convert to fraction form
    30,808.11/42,517.16 = 17,374.46/x
  3. Step 3: Cross multiply
    30,808.11x = 42,517.16 × 17,374.46
  4. Step 4: Simplify right side
    30,808.11x = 738,712,772.59
  5. Step 5: Solve for x
    x = 738,712,772.59/30,808.11
  6. Step 6: Final answer
    x = 23,977.87

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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.