Home / 20,553.39-30,811.22-7,402.57

Finding the Fourth Proportional to 20,553.39, 30,811.22 and 7,402.57

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Solution

The fourth proportional to 20,553.39, 30,811.22 and 7,402.57 is: 11,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.39 : 30,811.22 = 7,402.57 : x
  2. Step 2: Convert to fraction form
    20,553.39/30,811.22 = 7,402.57/x
  3. Step 3: Cross multiply
    20,553.39x = 30,811.22 × 7,402.57
  4. Step 4: Simplify right side
    20,553.39x = 228,082,126.55
  5. Step 5: Solve for x
    x = 228,082,126.55/20,553.39
  6. Step 6: Final answer
    x = 11,097.06

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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.