Home / 19,721.80-27,147.03-17,199.46

Finding the Fourth Proportional to 19,721.80, 27,147.03 and 17,199.46

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Solution

The fourth proportional to 19,721.80, 27,147.03 and 17,199.46 is: 23,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.80 : 27,147.03 = 17,199.46 : x
  2. Step 2: Convert to fraction form
    19,721.80/27,147.03 = 17,199.46/x
  3. Step 3: Cross multiply
    19,721.80x = 27,147.03 × 17,199.46
  4. Step 4: Simplify right side
    19,721.80x = 466,914,256.60
  5. Step 5: Solve for x
    x = 466,914,256.60/19,721.80
  6. Step 6: Final answer
    x = 23,675.03

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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.