Home / 20,104.11-30,203.29-18,968.03

Finding the Fourth Proportional to 20,104.11, 30,203.29 and 18,968.03

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Solution

The fourth proportional to 20,104.11, 30,203.29 and 18,968.03 is: 28,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.11 : 30,203.29 = 18,968.03 : x
  2. Step 2: Convert to fraction form
    20,104.11/30,203.29 = 18,968.03/x
  3. Step 3: Cross multiply
    20,104.11x = 30,203.29 × 18,968.03
  4. Step 4: Simplify right side
    20,104.11x = 572,896,783.51
  5. Step 5: Solve for x
    x = 572,896,783.51/20,104.11
  6. Step 6: Final answer
    x = 28,496.50

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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.