Home / 21,221.67-31,837.44-6,228.19

Finding the Fourth Proportional to 21,221.67, 31,837.44 and 6,228.19

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Solution

The fourth proportional to 21,221.67, 31,837.44 and 6,228.19 is: 9,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221.67 : 31,837.44 = 6,228.19 : x
  2. Step 2: Convert to fraction form
    21,221.67/31,837.44 = 6,228.19/x
  3. Step 3: Cross multiply
    21,221.67x = 31,837.44 × 6,228.19
  4. Step 4: Simplify right side
    21,221.67x = 198,289,688.59
  5. Step 5: Solve for x
    x = 198,289,688.59/21,221.67
  6. Step 6: Final answer
    x = 9,343.73

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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.