Home / 20,904.27-31,366.66-9,811.86

Finding the Fourth Proportional to 20,904.27, 31,366.66 and 9,811.86

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Solution

The fourth proportional to 20,904.27, 31,366.66 and 9,811.86 is: 14,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.27 : 31,366.66 = 9,811.86 : x
  2. Step 2: Convert to fraction form
    20,904.27/31,366.66 = 9,811.86/x
  3. Step 3: Cross multiply
    20,904.27x = 31,366.66 × 9,811.86
  4. Step 4: Simplify right side
    20,904.27x = 307,765,276.59
  5. Step 5: Solve for x
    x = 307,765,276.59/20,904.27
  6. Step 6: Final answer
    x = 14,722.60

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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.