Home / 30,811.61-42,521.99-17,377.96

Finding the Fourth Proportional to 30,811.61, 42,521.99 and 17,377.96

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Solution

The fourth proportional to 30,811.61, 42,521.99 and 17,377.96 is: 23,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.61 : 42,521.99 = 17,377.96 : x
  2. Step 2: Convert to fraction form
    30,811.61/42,521.99 = 17,377.96/x
  3. Step 3: Cross multiply
    30,811.61x = 42,521.99 × 17,377.96
  4. Step 4: Simplify right side
    30,811.61x = 738,945,441.34
  5. Step 5: Solve for x
    x = 738,945,441.34/30,811.61
  6. Step 6: Final answer
    x = 23,982.69

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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.