Home / 19,961.88-29,934.12-5,727.21

Finding the Fourth Proportional to 19,961.88, 29,934.12 and 5,727.21

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Solution

The fourth proportional to 19,961.88, 29,934.12 and 5,727.21 is: 8,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.88 : 29,934.12 = 5,727.21 : x
  2. Step 2: Convert to fraction form
    19,961.88/29,934.12 = 5,727.21/x
  3. Step 3: Cross multiply
    19,961.88x = 29,934.12 × 5,727.21
  4. Step 4: Simplify right side
    19,961.88x = 171,438,991.41
  5. Step 5: Solve for x
    x = 171,438,991.41/19,961.88
  6. Step 6: Final answer
    x = 8,588.32

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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.