Home / 20,066.16-30,076.56-15,120.30

Finding the Fourth Proportional to 20,066.16, 30,076.56 and 15,120.30

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Solution

The fourth proportional to 20,066.16, 30,076.56 and 15,120.30 is: 22,663.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.16 : 30,076.56 = 15,120.30 : x
  2. Step 2: Convert to fraction form
    20,066.16/30,076.56 = 15,120.30/x
  3. Step 3: Cross multiply
    20,066.16x = 30,076.56 × 15,120.30
  4. Step 4: Simplify right side
    20,066.16x = 454,766,610.17
  5. Step 5: Solve for x
    x = 454,766,610.17/20,066.16
  6. Step 6: Final answer
    x = 22,663.36

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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.