Home / 20,494.89-30,746.66-6,642.81

Finding the Fourth Proportional to 20,494.89, 30,746.66 and 6,642.81

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Solution

The fourth proportional to 20,494.89, 30,746.66 and 6,642.81 is: 9,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.89 : 30,746.66 = 6,642.81 : x
  2. Step 2: Convert to fraction form
    20,494.89/30,746.66 = 6,642.81/x
  3. Step 3: Cross multiply
    20,494.89x = 30,746.66 × 6,642.81
  4. Step 4: Simplify right side
    20,494.89x = 204,244,289.08
  5. Step 5: Solve for x
    x = 204,244,289.08/20,494.89
  6. Step 6: Final answer
    x = 9,965.62

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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.