Home / 21,214.74-31,826.19-8,066.09

Finding the Fourth Proportional to 21,214.74, 31,826.19 and 8,066.09

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Solution

The fourth proportional to 21,214.74, 31,826.19 and 8,066.09 is: 12,100.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.74 : 31,826.19 = 8,066.09 : x
  2. Step 2: Convert to fraction form
    21,214.74/31,826.19 = 8,066.09/x
  3. Step 3: Cross multiply
    21,214.74x = 31,826.19 × 8,066.09
  4. Step 4: Simplify right side
    21,214.74x = 256,712,753.77
  5. Step 5: Solve for x
    x = 256,712,753.77/21,214.74
  6. Step 6: Final answer
    x = 12,100.68

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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.