Home / 20,150.87-30,238.45-7,012.46

Finding the Fourth Proportional to 20,150.87, 30,238.45 and 7,012.46

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Solution

The fourth proportional to 20,150.87, 30,238.45 and 7,012.46 is: 10,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.87 : 30,238.45 = 7,012.46 : x
  2. Step 2: Convert to fraction form
    20,150.87/30,238.45 = 7,012.46/x
  3. Step 3: Cross multiply
    20,150.87x = 30,238.45 × 7,012.46
  4. Step 4: Simplify right side
    20,150.87x = 212,045,979.15
  5. Step 5: Solve for x
    x = 212,045,979.15/20,150.87
  6. Step 6: Final answer
    x = 10,522.92

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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.