Home / 20,150.84-30,234.47-7,012.44

Finding the Fourth Proportional to 20,150.84, 30,234.47 and 7,012.44

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Solution

The fourth proportional to 20,150.84, 30,234.47 and 7,012.44 is: 10,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.84 : 30,234.47 = 7,012.44 : x
  2. Step 2: Convert to fraction form
    20,150.84/30,234.47 = 7,012.44/x
  3. Step 3: Cross multiply
    20,150.84x = 30,234.47 × 7,012.44
  4. Step 4: Simplify right side
    20,150.84x = 212,017,371.74
  5. Step 5: Solve for x
    x = 212,017,371.74/20,150.84
  6. Step 6: Final answer
    x = 10,521.51

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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.