Home / 20,579.22-28,398.06-11,627.10

Finding the Fourth Proportional to 20,579.22, 28,398.06 and 11,627.10

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Solution

The fourth proportional to 20,579.22, 28,398.06 and 11,627.10 is: 16,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.22 : 28,398.06 = 11,627.10 : x
  2. Step 2: Convert to fraction form
    20,579.22/28,398.06 = 11,627.10/x
  3. Step 3: Cross multiply
    20,579.22x = 28,398.06 × 11,627.10
  4. Step 4: Simplify right side
    20,579.22x = 330,187,083.43
  5. Step 5: Solve for x
    x = 330,187,083.43/20,579.22
  6. Step 6: Final answer
    x = 16,044.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.