Home / 19,227.71-28,868.13-13,289.97

Finding the Fourth Proportional to 19,227.71, 28,868.13 and 13,289.97

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Solution

The fourth proportional to 19,227.71, 28,868.13 and 13,289.97 is: 19,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,227.71 : 28,868.13 = 13,289.97 : x
  2. Step 2: Convert to fraction form
    19,227.71/28,868.13 = 13,289.97/x
  3. Step 3: Cross multiply
    19,227.71x = 28,868.13 × 13,289.97
  4. Step 4: Simplify right side
    19,227.71x = 383,656,689.91
  5. Step 5: Solve for x
    x = 383,656,689.91/19,227.71
  6. Step 6: Final answer
    x = 19,953.32

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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.