Home / 19,321.24-28,979.12-6,171.92

Finding the Fourth Proportional to 19,321.24, 28,979.12 and 6,171.92

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Solution

The fourth proportional to 19,321.24, 28,979.12 and 6,171.92 is: 9,257.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.24 : 28,979.12 = 6,171.92 : x
  2. Step 2: Convert to fraction form
    19,321.24/28,979.12 = 6,171.92/x
  3. Step 3: Cross multiply
    19,321.24x = 28,979.12 × 6,171.92
  4. Step 4: Simplify right side
    19,321.24x = 178,856,810.31
  5. Step 5: Solve for x
    x = 178,856,810.31/19,321.24
  6. Step 6: Final answer
    x = 9,257.00

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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.