Home / 20,766.24-31,158.50-10,903.23

Finding the Fourth Proportional to 20,766.24, 31,158.50 and 10,903.23

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Solution

The fourth proportional to 20,766.24, 31,158.50 and 10,903.23 is: 16,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.24 : 31,158.50 = 10,903.23 : x
  2. Step 2: Convert to fraction form
    20,766.24/31,158.50 = 10,903.23/x
  3. Step 3: Cross multiply
    20,766.24x = 31,158.50 × 10,903.23
  4. Step 4: Simplify right side
    20,766.24x = 339,728,237.44
  5. Step 5: Solve for x
    x = 339,728,237.44/20,766.24
  6. Step 6: Final answer
    x = 16,359.64

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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.