Home / 20,109.04-30,163.55-6,954.23

Finding the Fourth Proportional to 20,109.04, 30,163.55 and 6,954.23

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Solution

The fourth proportional to 20,109.04, 30,163.55 and 6,954.23 is: 10,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.04 : 30,163.55 = 6,954.23 : x
  2. Step 2: Convert to fraction form
    20,109.04/30,163.55 = 6,954.23/x
  3. Step 3: Cross multiply
    20,109.04x = 30,163.55 × 6,954.23
  4. Step 4: Simplify right side
    20,109.04x = 209,764,264.32
  5. Step 5: Solve for x
    x = 209,764,264.32/20,109.04
  6. Step 6: Final answer
    x = 10,431.34

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Double scale
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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.