Home / 20,890.28-31,332.05-6,095.73

Finding the Fourth Proportional to 20,890.28, 31,332.05 and 6,095.73

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Solution

The fourth proportional to 20,890.28, 31,332.05 and 6,095.73 is: 9,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890.28 : 31,332.05 = 6,095.73 : x
  2. Step 2: Convert to fraction form
    20,890.28/31,332.05 = 6,095.73/x
  3. Step 3: Cross multiply
    20,890.28x = 31,332.05 × 6,095.73
  4. Step 4: Simplify right side
    20,890.28x = 190,991,575.73
  5. Step 5: Solve for x
    x = 190,991,575.73/20,890.28
  6. Step 6: Final answer
    x = 9,142.61

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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.