Home / 19,912.20-29,868.30-15,246.60

Finding the Fourth Proportional to 19,912.20, 29,868.30 and 15,246.60

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Solution

The fourth proportional to 19,912.20, 29,868.30 and 15,246.60 is: 22,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.20 : 29,868.30 = 15,246.60 : x
  2. Step 2: Convert to fraction form
    19,912.20/29,868.30 = 15,246.60/x
  3. Step 3: Cross multiply
    19,912.20x = 29,868.30 × 15,246.60
  4. Step 4: Simplify right side
    19,912.20x = 455,390,022.78
  5. Step 5: Solve for x
    x = 455,390,022.78/19,912.20
  6. Step 6: Final answer
    x = 22,869.90

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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.