Home / 34,098.80-51,157.20-11,912.12

Finding the Fourth Proportional to 34,098.80, 51,157.20 and 11,912.12

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Solution

The fourth proportional to 34,098.80, 51,157.20 and 11,912.12 is: 17,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,098.80 : 51,157.20 = 11,912.12 : x
  2. Step 2: Convert to fraction form
    34,098.80/51,157.20 = 11,912.12/x
  3. Step 3: Cross multiply
    34,098.80x = 51,157.20 × 11,912.12
  4. Step 4: Simplify right side
    34,098.80x = 609,390,705.26
  5. Step 5: Solve for x
    x = 609,390,705.26/34,098.80
  6. Step 6: Final answer
    x = 17,871.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.