Home / 34,139.60-51,174.96-14,121.46

Finding the Fourth Proportional to 34,139.60, 51,174.96 and 14,121.46

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Solution

The fourth proportional to 34,139.60, 51,174.96 and 14,121.46 is: 21,167.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.60 : 51,174.96 = 14,121.46 : x
  2. Step 2: Convert to fraction form
    34,139.60/51,174.96 = 14,121.46/x
  3. Step 3: Cross multiply
    34,139.60x = 51,174.96 × 14,121.46
  4. Step 4: Simplify right side
    34,139.60x = 722,665,150.64
  5. Step 5: Solve for x
    x = 722,665,150.64/34,139.60
  6. Step 6: Final answer
    x = 21,167.94

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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.