Home / 21,765.11-30,034.60-12,204.27

Finding the Fourth Proportional to 21,765.11, 30,034.60 and 12,204.27

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Solution

The fourth proportional to 21,765.11, 30,034.60 and 12,204.27 is: 16,841.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.11 : 30,034.60 = 12,204.27 : x
  2. Step 2: Convert to fraction form
    21,765.11/30,034.60 = 12,204.27/x
  3. Step 3: Cross multiply
    21,765.11x = 30,034.60 × 12,204.27
  4. Step 4: Simplify right side
    21,765.11x = 366,550,337.23
  5. Step 5: Solve for x
    x = 366,550,337.23/21,765.11
  6. Step 6: Final answer
    x = 16,841.19

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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.