Home / 20,897.82-31,354.92-9,202.83

Finding the Fourth Proportional to 20,897.82, 31,354.92 and 9,202.83

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Solution

The fourth proportional to 20,897.82, 31,354.92 and 9,202.83 is: 13,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.82 : 31,354.92 = 9,202.83 : x
  2. Step 2: Convert to fraction form
    20,897.82/31,354.92 = 9,202.83/x
  3. Step 3: Cross multiply
    20,897.82x = 31,354.92 × 9,202.83
  4. Step 4: Simplify right side
    20,897.82x = 288,553,998.42
  5. Step 5: Solve for x
    x = 288,553,998.42/20,897.82
  6. Step 6: Final answer
    x = 13,807.85

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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.