Home / 20,105.32-30,168.14-9,573.38

Finding the Fourth Proportional to 20,105.32, 30,168.14 and 9,573.38

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Solution

The fourth proportional to 20,105.32, 30,168.14 and 9,573.38 is: 14,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.32 : 30,168.14 = 9,573.38 : x
  2. Step 2: Convert to fraction form
    20,105.32/30,168.14 = 9,573.38/x
  3. Step 3: Cross multiply
    20,105.32x = 30,168.14 × 9,573.38
  4. Step 4: Simplify right side
    20,105.32x = 288,810,941.21
  5. Step 5: Solve for x
    x = 288,810,941.21/20,105.32
  6. Step 6: Final answer
    x = 14,364.90

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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.