Home / 31,979.61-47,969.42-11,198.25

Finding the Fourth Proportional to 31,979.61, 47,969.42 and 11,198.25

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Solution

The fourth proportional to 31,979.61, 47,969.42 and 11,198.25 is: 16,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.61 : 47,969.42 = 11,198.25 : x
  2. Step 2: Convert to fraction form
    31,979.61/47,969.42 = 11,198.25/x
  3. Step 3: Cross multiply
    31,979.61x = 47,969.42 × 11,198.25
  4. Step 4: Simplify right side
    31,979.61x = 537,173,501.52
  5. Step 5: Solve for x
    x = 537,173,501.52/31,979.61
  6. Step 6: Final answer
    x = 16,797.38

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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.