Home / 20,156.62-30,224.56-9,053.78

Finding the Fourth Proportional to 20,156.62, 30,224.56 and 9,053.78

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Solution

The fourth proportional to 20,156.62, 30,224.56 and 9,053.78 is: 13,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.62 : 30,224.56 = 9,053.78 : x
  2. Step 2: Convert to fraction form
    20,156.62/30,224.56 = 9,053.78/x
  3. Step 3: Cross multiply
    20,156.62x = 30,224.56 × 9,053.78
  4. Step 4: Simplify right side
    20,156.62x = 273,646,320.45
  5. Step 5: Solve for x
    x = 273,646,320.45/20,156.62
  6. Step 6: Final answer
    x = 13,576.01

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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.