Home / 34,139.50-51,207.60-11,957.86

Finding the Fourth Proportional to 34,139.50, 51,207.60 and 11,957.86

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Solution

The fourth proportional to 34,139.50, 51,207.60 and 11,957.86 is: 17,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.50 : 51,207.60 = 11,957.86 : x
  2. Step 2: Convert to fraction form
    34,139.50/51,207.60 = 11,957.86/x
  3. Step 3: Cross multiply
    34,139.50x = 51,207.60 × 11,957.86
  4. Step 4: Simplify right side
    34,139.50x = 612,333,311.74
  5. Step 5: Solve for x
    x = 612,333,311.74/34,139.50
  6. Step 6: Final answer
    x = 17,936.21

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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.