Home / 19,243.75-28,868.10-5,392.75

Finding the Fourth Proportional to 19,243.75, 28,868.10 and 5,392.75

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Solution

The fourth proportional to 19,243.75, 28,868.10 and 5,392.75 is: 8,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.75 : 28,868.10 = 5,392.75 : x
  2. Step 2: Convert to fraction form
    19,243.75/28,868.10 = 5,392.75/x
  3. Step 3: Cross multiply
    19,243.75x = 28,868.10 × 5,392.75
  4. Step 4: Simplify right side
    19,243.75x = 155,678,446.28
  5. Step 5: Solve for x
    x = 155,678,446.28/19,243.75
  6. Step 6: Final answer
    x = 8,089.82

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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.