Home / 20,168.13-30,202.88-17,412.51

Finding the Fourth Proportional to 20,168.13, 30,202.88 and 17,412.51

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Solution

The fourth proportional to 20,168.13, 30,202.88 and 17,412.51 is: 26,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.13 : 30,202.88 = 17,412.51 : x
  2. Step 2: Convert to fraction form
    20,168.13/30,202.88 = 17,412.51/x
  3. Step 3: Cross multiply
    20,168.13x = 30,202.88 × 17,412.51
  4. Step 4: Simplify right side
    20,168.13x = 525,907,862.97
  5. Step 5: Solve for x
    x = 525,907,862.97/20,168.13
  6. Step 6: Final answer
    x = 26,076.18

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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.