Home / 20,741.81-31,118.04-5,951.75

Finding the Fourth Proportional to 20,741.81, 31,118.04 and 5,951.75

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Solution

The fourth proportional to 20,741.81, 31,118.04 and 5,951.75 is: 8,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.81 : 31,118.04 = 5,951.75 : x
  2. Step 2: Convert to fraction form
    20,741.81/31,118.04 = 5,951.75/x
  3. Step 3: Cross multiply
    20,741.81x = 31,118.04 × 5,951.75
  4. Step 4: Simplify right side
    20,741.81x = 185,206,638.98
  5. Step 5: Solve for x
    x = 185,206,638.98/20,741.81
  6. Step 6: Final answer
    x = 8,929.15

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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.