Home / 23,311.85-34,992.23-20,660.40

Finding the Fourth Proportional to 23,311.85, 34,992.23 and 20,660.40

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Solution

The fourth proportional to 23,311.85, 34,992.23 and 20,660.40 is: 31,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,311.85 : 34,992.23 = 20,660.40 : x
  2. Step 2: Convert to fraction form
    23,311.85/34,992.23 = 20,660.40/x
  3. Step 3: Cross multiply
    23,311.85x = 34,992.23 × 20,660.40
  4. Step 4: Simplify right side
    23,311.85x = 722,953,365.39
  5. Step 5: Solve for x
    x = 722,953,365.39/23,311.85
  6. Step 6: Final answer
    x = 31,012.28

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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.