Home / 21,066.96-31,600.44-6,276.12

Finding the Fourth Proportional to 21,066.96, 31,600.44 and 6,276.12

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Solution

The fourth proportional to 21,066.96, 31,600.44 and 6,276.12 is: 9,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.96 : 31,600.44 = 6,276.12 : x
  2. Step 2: Convert to fraction form
    21,066.96/31,600.44 = 6,276.12/x
  3. Step 3: Cross multiply
    21,066.96x = 31,600.44 × 6,276.12
  4. Step 4: Simplify right side
    21,066.96x = 198,328,153.49
  5. Step 5: Solve for x
    x = 198,328,153.49/21,066.96
  6. Step 6: Final answer
    x = 9,414.18

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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.