Home / 19,720.30-27,144.96-17,197.96

Finding the Fourth Proportional to 19,720.30, 27,144.96 and 17,197.96

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Solution

The fourth proportional to 19,720.30, 27,144.96 and 17,197.96 is: 23,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.30 : 27,144.96 = 17,197.96 : x
  2. Step 2: Convert to fraction form
    19,720.30/27,144.96 = 17,197.96/x
  3. Step 3: Cross multiply
    19,720.30x = 27,144.96 × 17,197.96
  4. Step 4: Simplify right side
    19,720.30x = 466,837,936.28
  5. Step 5: Solve for x
    x = 466,837,936.28/19,720.30
  6. Step 6: Final answer
    x = 23,672.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.