Home / 22,722.75-31,359.83-13,299.21

Finding the Fourth Proportional to 22,722.75, 31,359.83 and 13,299.21

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Solution

The fourth proportional to 22,722.75, 31,359.83 and 13,299.21 is: 18,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,722.75 : 31,359.83 = 13,299.21 : x
  2. Step 2: Convert to fraction form
    22,722.75/31,359.83 = 13,299.21/x
  3. Step 3: Cross multiply
    22,722.75x = 31,359.83 × 13,299.21
  4. Step 4: Simplify right side
    22,722.75x = 417,060,898.24
  5. Step 5: Solve for x
    x = 417,060,898.24/22,722.75
  6. Step 6: Final answer
    x = 18,354.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.