Home / 20,018.88-30,023.66-7,540.16

Finding the Fourth Proportional to 20,018.88, 30,023.66 and 7,540.16

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Solution

The fourth proportional to 20,018.88, 30,023.66 and 7,540.16 is: 11,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.88 : 30,023.66 = 7,540.16 : x
  2. Step 2: Convert to fraction form
    20,018.88/30,023.66 = 7,540.16/x
  3. Step 3: Cross multiply
    20,018.88x = 30,023.66 × 7,540.16
  4. Step 4: Simplify right side
    20,018.88x = 226,383,068.92
  5. Step 5: Solve for x
    x = 226,383,068.92/20,018.88
  6. Step 6: Final answer
    x = 11,308.48

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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.