Home / 34,218.11-51,334.38-12,870.96

Finding the Fourth Proportional to 34,218.11, 51,334.38 and 12,870.96

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Solution

The fourth proportional to 34,218.11, 51,334.38 and 12,870.96 is: 19,309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.11 : 51,334.38 = 12,870.96 : x
  2. Step 2: Convert to fraction form
    34,218.11/51,334.38 = 12,870.96/x
  3. Step 3: Cross multiply
    34,218.11x = 51,334.38 × 12,870.96
  4. Step 4: Simplify right side
    34,218.11x = 660,722,751.60
  5. Step 5: Solve for x
    x = 660,722,751.60/34,218.11
  6. Step 6: Final answer
    x = 19,309.16

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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.