Home / 20,087.72-30,107.70-15,141.04

Finding the Fourth Proportional to 20,087.72, 30,107.70 and 15,141.04

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Solution

The fourth proportional to 20,087.72, 30,107.70 and 15,141.04 is: 22,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.72 : 30,107.70 = 15,141.04 : x
  2. Step 2: Convert to fraction form
    20,087.72/30,107.70 = 15,141.04/x
  3. Step 3: Cross multiply
    20,087.72x = 30,107.70 × 15,141.04
  4. Step 4: Simplify right side
    20,087.72x = 455,861,890.01
  5. Step 5: Solve for x
    x = 455,861,890.01/20,087.72
  6. Step 6: Final answer
    x = 22,693.56

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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.