Home / 20,109.70-30,163.56-9,572.05

Finding the Fourth Proportional to 20,109.70, 30,163.56 and 9,572.05

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Solution

The fourth proportional to 20,109.70, 30,163.56 and 9,572.05 is: 14,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.70 : 30,163.56 = 9,572.05 : x
  2. Step 2: Convert to fraction form
    20,109.70/30,163.56 = 9,572.05/x
  3. Step 3: Cross multiply
    20,109.70x = 30,163.56 × 9,572.05
  4. Step 4: Simplify right side
    20,109.70x = 288,727,104.50
  5. Step 5: Solve for x
    x = 288,727,104.50/20,109.70
  6. Step 6: Final answer
    x = 14,357.60

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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.