Home / 34,409.89-51,619.97-12,221.40

Finding the Fourth Proportional to 34,409.89, 51,619.97 and 12,221.40

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Solution

The fourth proportional to 34,409.89, 51,619.97 and 12,221.40 is: 18,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,409.89 : 51,619.97 = 12,221.40 : x
  2. Step 2: Convert to fraction form
    34,409.89/51,619.97 = 12,221.40/x
  3. Step 3: Cross multiply
    34,409.89x = 51,619.97 × 12,221.40
  4. Step 4: Simplify right side
    34,409.89x = 630,868,301.36
  5. Step 5: Solve for x
    x = 630,868,301.36/34,409.89
  6. Step 6: Final answer
    x = 18,333.92

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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.