Home / 20,158.26-30,240.52-10,292.20

Finding the Fourth Proportional to 20,158.26, 30,240.52 and 10,292.20

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Solution

The fourth proportional to 20,158.26, 30,240.52 and 10,292.20 is: 15,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.26 : 30,240.52 = 10,292.20 : x
  2. Step 2: Convert to fraction form
    20,158.26/30,240.52 = 10,292.20/x
  3. Step 3: Cross multiply
    20,158.26x = 30,240.52 × 10,292.20
  4. Step 4: Simplify right side
    20,158.26x = 311,241,479.94
  5. Step 5: Solve for x
    x = 311,241,479.94/20,158.26
  6. Step 6: Final answer
    x = 15,439.90

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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.