Home / 34,390.38-51,487.08-21,153.54

Finding the Fourth Proportional to 34,390.38, 51,487.08 and 21,153.54

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Solution

The fourth proportional to 34,390.38, 51,487.08 and 21,153.54 is: 31,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.38 : 51,487.08 = 21,153.54 : x
  2. Step 2: Convert to fraction form
    34,390.38/51,487.08 = 21,153.54/x
  3. Step 3: Cross multiply
    34,390.38x = 51,487.08 × 21,153.54
  4. Step 4: Simplify right side
    34,390.38x = 1,089,134,006.26
  5. Step 5: Solve for x
    x = 1,089,134,006.26/34,390.38
  6. Step 6: Final answer
    x = 31,669.73

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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.