Home / 19,286.08-28,935.72-8,890

Finding the Fourth Proportional to 19,286.08, 28,935.72 and 8,890

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Solution

The fourth proportional to 19,286.08, 28,935.72 and 8,890 is: 13,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.08 : 28,935.72 = 8,890 : x
  2. Step 2: Convert to fraction form
    19,286.08/28,935.72 = 8,890/x
  3. Step 3: Cross multiply
    19,286.08x = 28,935.72 × 8,890
  4. Step 4: Simplify right side
    19,286.08x = 257,238,550.80
  5. Step 5: Solve for x
    x = 257,238,550.80/19,286.08
  6. Step 6: Final answer
    x = 13,338.04

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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.