Home / 19,286.64-28,939.68-15,100.56

Finding the Fourth Proportional to 19,286.64, 28,939.68 and 15,100.56

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Solution

The fourth proportional to 19,286.64, 28,939.68 and 15,100.56 is: 22,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.64 : 28,939.68 = 15,100.56 : x
  2. Step 2: Convert to fraction form
    19,286.64/28,939.68 = 15,100.56/x
  3. Step 3: Cross multiply
    19,286.64x = 28,939.68 × 15,100.56
  4. Step 4: Simplify right side
    19,286.64x = 437,005,374.22
  5. Step 5: Solve for x
    x = 437,005,374.22/19,286.64
  6. Step 6: Final answer
    x = 22,658.45

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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.