Home / 30,765.29-42,456.11-16,618.13

Finding the Fourth Proportional to 30,765.29, 42,456.11 and 16,618.13

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Solution

The fourth proportional to 30,765.29, 42,456.11 and 16,618.13 is: 22,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.29 : 42,456.11 = 16,618.13 : x
  2. Step 2: Convert to fraction form
    30,765.29/42,456.11 = 16,618.13/x
  3. Step 3: Cross multiply
    30,765.29x = 42,456.11 × 16,618.13
  4. Step 4: Simplify right side
    30,765.29x = 705,540,859.90
  5. Step 5: Solve for x
    x = 705,540,859.90/30,765.29
  6. Step 6: Final answer
    x = 22,933.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.