Home / 30,961.80-42,727.14-16,814.52

Finding the Fourth Proportional to 30,961.80, 42,727.14 and 16,814.52

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Solution

The fourth proportional to 30,961.80, 42,727.14 and 16,814.52 is: 23,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,961.80 : 42,727.14 = 16,814.52 : x
  2. Step 2: Convert to fraction form
    30,961.80/42,727.14 = 16,814.52/x
  3. Step 3: Cross multiply
    30,961.80x = 42,727.14 × 16,814.52
  4. Step 4: Simplify right side
    30,961.80x = 718,436,350.07
  5. Step 5: Solve for x
    x = 718,436,350.07/30,961.80
  6. Step 6: Final answer
    x = 23,203.96

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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.