Home / 30,811.10-42,521.30-17,377.46

Finding the Fourth Proportional to 30,811.10, 42,521.30 and 17,377.46

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Solution

The fourth proportional to 30,811.10, 42,521.30 and 17,377.46 is: 23,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.10 : 42,521.30 = 17,377.46 : x
  2. Step 2: Convert to fraction form
    30,811.10/42,521.30 = 17,377.46/x
  3. Step 3: Cross multiply
    30,811.10x = 42,521.30 × 17,377.46
  4. Step 4: Simplify right side
    30,811.10x = 738,912,189.90
  5. Step 5: Solve for x
    x = 738,912,189.90/30,811.10
  6. Step 6: Final answer
    x = 23,982.01

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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.