Home / 20,076.93-30,105.88-7,422.57

Finding the Fourth Proportional to 20,076.93, 30,105.88 and 7,422.57

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Solution

The fourth proportional to 20,076.93, 30,105.88 and 7,422.57 is: 11,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.93 : 30,105.88 = 7,422.57 : x
  2. Step 2: Convert to fraction form
    20,076.93/30,105.88 = 7,422.57/x
  3. Step 3: Cross multiply
    20,076.93x = 30,105.88 × 7,422.57
  4. Step 4: Simplify right side
    20,076.93x = 223,462,983.16
  5. Step 5: Solve for x
    x = 223,462,983.16/20,076.93
  6. Step 6: Final answer
    x = 11,130.34

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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.