Home / 19,711.88-29,582.86-7,243.72

Finding the Fourth Proportional to 19,711.88, 29,582.86 and 7,243.72

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Solution

The fourth proportional to 19,711.88, 29,582.86 and 7,243.72 is: 10,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.88 : 29,582.86 = 7,243.72 : x
  2. Step 2: Convert to fraction form
    19,711.88/29,582.86 = 7,243.72/x
  3. Step 3: Cross multiply
    19,711.88x = 29,582.86 × 7,243.72
  4. Step 4: Simplify right side
    19,711.88x = 214,289,954.64
  5. Step 5: Solve for x
    x = 214,289,954.64/19,711.88
  6. Step 6: Final answer
    x = 10,871.11

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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.