Home / 31,722.99-47,584.82-12,998.22

Finding the Fourth Proportional to 31,722.99, 47,584.82 and 12,998.22

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Solution

The fourth proportional to 31,722.99, 47,584.82 and 12,998.22 is: 19,497.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.99 : 47,584.82 = 12,998.22 : x
  2. Step 2: Convert to fraction form
    31,722.99/47,584.82 = 12,998.22/x
  3. Step 3: Cross multiply
    31,722.99x = 47,584.82 × 12,998.22
  4. Step 4: Simplify right side
    31,722.99x = 618,517,959.02
  5. Step 5: Solve for x
    x = 618,517,959.02/31,722.99
  6. Step 6: Final answer
    x = 19,497.47

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Double scale
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Similar ratio
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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.