Home / 34,288.80-51,436.98-10,909.78

Finding the Fourth Proportional to 34,288.80, 51,436.98 and 10,909.78

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Solution

The fourth proportional to 34,288.80, 51,436.98 and 10,909.78 is: 16,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,288.80 : 51,436.98 = 10,909.78 : x
  2. Step 2: Convert to fraction form
    34,288.80/51,436.98 = 10,909.78/x
  3. Step 3: Cross multiply
    34,288.80x = 51,436.98 × 10,909.78
  4. Step 4: Simplify right side
    34,288.80x = 561,166,135.66
  5. Step 5: Solve for x
    x = 561,166,135.66/34,288.80
  6. Step 6: Final answer
    x = 16,365.87

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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.