Home / 15,311.79-22,948.11-13,329.32

Finding the Fourth Proportional to 15,311.79, 22,948.11 and 13,329.32

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Solution

The fourth proportional to 15,311.79, 22,948.11 and 13,329.32 is: 19,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.79 : 22,948.11 = 13,329.32 : x
  2. Step 2: Convert to fraction form
    15,311.79/22,948.11 = 13,329.32/x
  3. Step 3: Cross multiply
    15,311.79x = 22,948.11 × 13,329.32
  4. Step 4: Simplify right side
    15,311.79x = 305,882,586.84
  5. Step 5: Solve for x
    x = 305,882,586.84/15,311.79
  6. Step 6: Final answer
    x = 19,976.93

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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.