Home / 21,268.22-31,905.80-6,473.67

Finding the Fourth Proportional to 21,268.22, 31,905.80 and 6,473.67

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Solution

The fourth proportional to 21,268.22, 31,905.80 and 6,473.67 is: 9,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.22 : 31,905.80 = 6,473.67 : x
  2. Step 2: Convert to fraction form
    21,268.22/31,905.80 = 6,473.67/x
  3. Step 3: Cross multiply
    21,268.22x = 31,905.80 × 6,473.67
  4. Step 4: Simplify right side
    21,268.22x = 206,547,672.02
  5. Step 5: Solve for x
    x = 206,547,672.02/21,268.22
  6. Step 6: Final answer
    x = 9,711.56

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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.