Home / 19,211.12-28,813.43-5,356.88

Finding the Fourth Proportional to 19,211.12, 28,813.43 and 5,356.88

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Solution

The fourth proportional to 19,211.12, 28,813.43 and 5,356.88 is: 8,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.12 : 28,813.43 = 5,356.88 : x
  2. Step 2: Convert to fraction form
    19,211.12/28,813.43 = 5,356.88/x
  3. Step 3: Cross multiply
    19,211.12x = 28,813.43 × 5,356.88
  4. Step 4: Simplify right side
    19,211.12x = 154,349,956.22
  5. Step 5: Solve for x
    x = 154,349,956.22/19,211.12
  6. Step 6: Final answer
    x = 8,034.41

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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.