Home / 20,950.92-31,429.35-6,160.86

Finding the Fourth Proportional to 20,950.92, 31,429.35 and 6,160.86

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Solution

The fourth proportional to 20,950.92, 31,429.35 and 6,160.86 is: 9,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.92 : 31,429.35 = 6,160.86 : x
  2. Step 2: Convert to fraction form
    20,950.92/31,429.35 = 6,160.86/x
  3. Step 3: Cross multiply
    20,950.92x = 31,429.35 × 6,160.86
  4. Step 4: Simplify right side
    20,950.92x = 193,631,825.24
  5. Step 5: Solve for x
    x = 193,631,825.24/20,950.92
  6. Step 6: Final answer
    x = 9,242.16

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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.