Home / 20,958.92-31,442.27-6,919.93

Finding the Fourth Proportional to 20,958.92, 31,442.27 and 6,919.93

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Solution

The fourth proportional to 20,958.92, 31,442.27 and 6,919.93 is: 10,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.92 : 31,442.27 = 6,919.93 : x
  2. Step 2: Convert to fraction form
    20,958.92/31,442.27 = 6,919.93/x
  3. Step 3: Cross multiply
    20,958.92x = 31,442.27 × 6,919.93
  4. Step 4: Simplify right side
    20,958.92x = 217,578,194.24
  5. Step 5: Solve for x
    x = 217,578,194.24/20,958.92
  6. Step 6: Final answer
    x = 10,381.17

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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.