Home / 20,790.72-31,186.10-5,797.24

Finding the Fourth Proportional to 20,790.72, 31,186.10 and 5,797.24

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Solution

The fourth proportional to 20,790.72, 31,186.10 and 5,797.24 is: 8,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790.72 : 31,186.10 = 5,797.24 : x
  2. Step 2: Convert to fraction form
    20,790.72/31,186.10 = 5,797.24/x
  3. Step 3: Cross multiply
    20,790.72x = 31,186.10 × 5,797.24
  4. Step 4: Simplify right side
    20,790.72x = 180,793,306.36
  5. Step 5: Solve for x
    x = 180,793,306.36/20,790.72
  6. Step 6: Final answer
    x = 8,695.87

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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.