Home / 30,171.80-41,635.50-16,742

Finding the Fourth Proportional to 30,171.80, 41,635.50 and 16,742

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Solution

The fourth proportional to 30,171.80, 41,635.50 and 16,742 is: 23,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.80 : 41,635.50 = 16,742 : x
  2. Step 2: Convert to fraction form
    30,171.80/41,635.50 = 16,742/x
  3. Step 3: Cross multiply
    30,171.80x = 41,635.50 × 16,742
  4. Step 4: Simplify right side
    30,171.80x = 697,061,541
  5. Step 5: Solve for x
    x = 697,061,541/30,171.80
  6. Step 6: Final answer
    x = 23,103.08

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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.