Home / 20,110.13-30,165.60-9,581.36

Finding the Fourth Proportional to 20,110.13, 30,165.60 and 9,581.36

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Solution

The fourth proportional to 20,110.13, 30,165.60 and 9,581.36 is: 14,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.13 : 30,165.60 = 9,581.36 : x
  2. Step 2: Convert to fraction form
    20,110.13/30,165.60 = 9,581.36/x
  3. Step 3: Cross multiply
    20,110.13x = 30,165.60 × 9,581.36
  4. Step 4: Simplify right side
    20,110.13x = 289,027,473.22
  5. Step 5: Solve for x
    x = 289,027,473.22/20,110.13
  6. Step 6: Final answer
    x = 14,372.23

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1.5x scale

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.