Home / 20,011.22-30,024.92-8,910.32

Finding the Fourth Proportional to 20,011.22, 30,024.92 and 8,910.32

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Solution

The fourth proportional to 20,011.22, 30,024.92 and 8,910.32 is: 13,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.22 : 30,024.92 = 8,910.32 : x
  2. Step 2: Convert to fraction form
    20,011.22/30,024.92 = 8,910.32/x
  3. Step 3: Cross multiply
    20,011.22x = 30,024.92 × 8,910.32
  4. Step 4: Simplify right side
    20,011.22x = 267,531,645.17
  5. Step 5: Solve for x
    x = 267,531,645.17/20,011.22
  6. Step 6: Final answer
    x = 13,369.08

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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.