Home / 20,066.81-30,090.09-11,749.46

Finding the Fourth Proportional to 20,066.81, 30,090.09 and 11,749.46

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Solution

The fourth proportional to 20,066.81, 30,090.09 and 11,749.46 is: 17,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.81 : 30,090.09 = 11,749.46 : x
  2. Step 2: Convert to fraction form
    20,066.81/30,090.09 = 11,749.46/x
  3. Step 3: Cross multiply
    20,066.81x = 30,090.09 × 11,749.46
  4. Step 4: Simplify right side
    20,066.81x = 353,542,308.85
  5. Step 5: Solve for x
    x = 353,542,308.85/20,066.81
  6. Step 6: Final answer
    x = 17,618.26

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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.