Home / 20,153.42-30,240.36-9,057.86

Finding the Fourth Proportional to 20,153.42, 30,240.36 and 9,057.86

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Solution

The fourth proportional to 20,153.42, 30,240.36 and 9,057.86 is: 13,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.42 : 30,240.36 = 9,057.86 : x
  2. Step 2: Convert to fraction form
    20,153.42/30,240.36 = 9,057.86/x
  3. Step 3: Cross multiply
    20,153.42x = 30,240.36 × 9,057.86
  4. Step 4: Simplify right side
    20,153.42x = 273,912,947.23
  5. Step 5: Solve for x
    x = 273,912,947.23/20,153.42
  6. Step 6: Final answer
    x = 13,591.39

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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.