Home / 19,020.84-28,531.32-5,169.84

Finding the Fourth Proportional to 19,020.84, 28,531.32 and 5,169.84

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Solution

The fourth proportional to 19,020.84, 28,531.32 and 5,169.84 is: 7,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.84 : 28,531.32 = 5,169.84 : x
  2. Step 2: Convert to fraction form
    19,020.84/28,531.32 = 5,169.84/x
  3. Step 3: Cross multiply
    19,020.84x = 28,531.32 × 5,169.84
  4. Step 4: Simplify right side
    19,020.84x = 147,502,359.39
  5. Step 5: Solve for x
    x = 147,502,359.39/19,020.84
  6. Step 6: Final answer
    x = 7,754.78

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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.