Home / 20,581.09-30,871.63-9,484.49

Finding the Fourth Proportional to 20,581.09, 30,871.63 and 9,484.49

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Solution

The fourth proportional to 20,581.09, 30,871.63 and 9,484.49 is: 14,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.09 : 30,871.63 = 9,484.49 : x
  2. Step 2: Convert to fraction form
    20,581.09/30,871.63 = 9,484.49/x
  3. Step 3: Cross multiply
    20,581.09x = 30,871.63 × 9,484.49
  4. Step 4: Simplify right side
    20,581.09x = 292,801,755.05
  5. Step 5: Solve for x
    x = 292,801,755.05/20,581.09
  6. Step 6: Final answer
    x = 14,226.74

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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.