Home / 34,218.80-51,360.60-21,096.80

Finding the Fourth Proportional to 34,218.80, 51,360.60 and 21,096.80

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Solution

The fourth proportional to 34,218.80, 51,360.60 and 21,096.80 is: 31,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.80 : 51,360.60 = 21,096.80 : x
  2. Step 2: Convert to fraction form
    34,218.80/51,360.60 = 21,096.80/x
  3. Step 3: Cross multiply
    34,218.80x = 51,360.60 × 21,096.80
  4. Step 4: Simplify right side
    34,218.80x = 1,083,544,306.08
  5. Step 5: Solve for x
    x = 1,083,544,306.08/34,218.80
  6. Step 6: Final answer
    x = 31,665.18

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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.