Home / 20,422.22-30,606.85-9,169.26

Finding the Fourth Proportional to 20,422.22, 30,606.85 and 9,169.26

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Solution

The fourth proportional to 20,422.22, 30,606.85 and 9,169.26 is: 13,741.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.22 : 30,606.85 = 9,169.26 : x
  2. Step 2: Convert to fraction form
    20,422.22/30,606.85 = 9,169.26/x
  3. Step 3: Cross multiply
    20,422.22x = 30,606.85 × 9,169.26
  4. Step 4: Simplify right side
    20,422.22x = 280,642,090.81
  5. Step 5: Solve for x
    x = 280,642,090.81/20,422.22
  6. Step 6: Final answer
    x = 13,741.99

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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.