Home / 20,207.22-30,300.68-11,776.44

Finding the Fourth Proportional to 20,207.22, 30,300.68 and 11,776.44

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Solution

The fourth proportional to 20,207.22, 30,300.68 and 11,776.44 is: 17,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.22 : 30,300.68 = 11,776.44 : x
  2. Step 2: Convert to fraction form
    20,207.22/30,300.68 = 11,776.44/x
  3. Step 3: Cross multiply
    20,207.22x = 30,300.68 × 11,776.44
  4. Step 4: Simplify right side
    20,207.22x = 356,834,139.98
  5. Step 5: Solve for x
    x = 356,834,139.98/20,207.22
  6. Step 6: Final answer
    x = 17,658.74

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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.