Home / 20,964.96-31,437.72-12,202.38

Finding the Fourth Proportional to 20,964.96, 31,437.72 and 12,202.38

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Solution

The fourth proportional to 20,964.96, 31,437.72 and 12,202.38 is: 18,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.96 : 31,437.72 = 12,202.38 : x
  2. Step 2: Convert to fraction form
    20,964.96/31,437.72 = 12,202.38/x
  3. Step 3: Cross multiply
    20,964.96x = 31,437.72 × 12,202.38
  4. Step 4: Simplify right side
    20,964.96x = 383,615,005.77
  5. Step 5: Solve for x
    x = 383,615,005.77/20,964.96
  6. Step 6: Final answer
    x = 18,297.91

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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.