Home / 19,276.26-28,938.70-16,660.38

Finding the Fourth Proportional to 19,276.26, 28,938.70 and 16,660.38

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Solution

The fourth proportional to 19,276.26, 28,938.70 and 16,660.38 is: 25,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.26 : 28,938.70 = 16,660.38 : x
  2. Step 2: Convert to fraction form
    19,276.26/28,938.70 = 16,660.38/x
  3. Step 3: Cross multiply
    19,276.26x = 28,938.70 × 16,660.38
  4. Step 4: Simplify right side
    19,276.26x = 482,129,738.71
  5. Step 5: Solve for x
    x = 482,129,738.71/19,276.26
  6. Step 6: Final answer
    x = 25,011.58

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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.