Home / 19,811.98-29,717.25-7,969.42

Finding the Fourth Proportional to 19,811.98, 29,717.25 and 7,969.42

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Solution

The fourth proportional to 19,811.98, 29,717.25 and 7,969.42 is: 11,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.98 : 29,717.25 = 7,969.42 : x
  2. Step 2: Convert to fraction form
    19,811.98/29,717.25 = 7,969.42/x
  3. Step 3: Cross multiply
    19,811.98x = 29,717.25 × 7,969.42
  4. Step 4: Simplify right side
    19,811.98x = 236,829,246.50
  5. Step 5: Solve for x
    x = 236,829,246.50/19,811.98
  6. Step 6: Final answer
    x = 11,953.84

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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.