Home / 19,097.20-28,667.40-11,310.40

Finding the Fourth Proportional to 19,097.20, 28,667.40 and 11,310.40

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Solution

The fourth proportional to 19,097.20, 28,667.40 and 11,310.40 is: 16,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,097.20 : 28,667.40 = 11,310.40 : x
  2. Step 2: Convert to fraction form
    19,097.20/28,667.40 = 11,310.40/x
  3. Step 3: Cross multiply
    19,097.20x = 28,667.40 × 11,310.40
  4. Step 4: Simplify right side
    19,097.20x = 324,239,760.96
  5. Step 5: Solve for x
    x = 324,239,760.96/19,097.20
  6. Step 6: Final answer
    x = 16,978.39

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1.5x scale

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.