Home / 22,330.65-30,815.31-13,376.10

Finding the Fourth Proportional to 22,330.65, 30,815.31 and 13,376.10

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Solution

The fourth proportional to 22,330.65, 30,815.31 and 13,376.10 is: 18,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.65 : 30,815.31 = 13,376.10 : x
  2. Step 2: Convert to fraction form
    22,330.65/30,815.31 = 13,376.10/x
  3. Step 3: Cross multiply
    22,330.65x = 30,815.31 × 13,376.10
  4. Step 4: Simplify right side
    22,330.65x = 412,188,668.09
  5. Step 5: Solve for x
    x = 412,188,668.09/22,330.65
  6. Step 6: Final answer
    x = 18,458.43

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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.