Home / 34,109.31-51,169.44-14,390.78

Finding the Fourth Proportional to 34,109.31, 51,169.44 and 14,390.78

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Solution

The fourth proportional to 34,109.31, 51,169.44 and 14,390.78 is: 21,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,109.31 : 51,169.44 = 14,390.78 : x
  2. Step 2: Convert to fraction form
    34,109.31/51,169.44 = 14,390.78/x
  3. Step 3: Cross multiply
    34,109.31x = 51,169.44 × 14,390.78
  4. Step 4: Simplify right side
    34,109.31x = 736,368,153.76
  5. Step 5: Solve for x
    x = 736,368,153.76/34,109.31
  6. Step 6: Final answer
    x = 21,588.48

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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.