Home / 21,946.65-30,286.76-12,388.44

Finding the Fourth Proportional to 21,946.65, 30,286.76 and 12,388.44

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Solution

The fourth proportional to 21,946.65, 30,286.76 and 12,388.44 is: 17,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.65 : 30,286.76 = 12,388.44 : x
  2. Step 2: Convert to fraction form
    21,946.65/30,286.76 = 12,388.44/x
  3. Step 3: Cross multiply
    21,946.65x = 30,286.76 × 12,388.44
  4. Step 4: Simplify right side
    21,946.65x = 375,205,830.37
  5. Step 5: Solve for x
    x = 375,205,830.37/21,946.65
  6. Step 6: Final answer
    x = 17,096.27

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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.