Home / 20,950.64-31,431.36-6,160.04

Finding the Fourth Proportional to 20,950.64, 31,431.36 and 6,160.04

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Solution

The fourth proportional to 20,950.64, 31,431.36 and 6,160.04 is: 9,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.64 : 31,431.36 = 6,160.04 : x
  2. Step 2: Convert to fraction form
    20,950.64/31,431.36 = 6,160.04/x
  3. Step 3: Cross multiply
    20,950.64x = 31,431.36 × 6,160.04
  4. Step 4: Simplify right side
    20,950.64x = 193,618,434.85
  5. Step 5: Solve for x
    x = 193,618,434.85/20,950.64
  6. Step 6: Final answer
    x = 9,241.65

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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.