Home / 19,669.92-27,154.53-13,330

Finding the Fourth Proportional to 19,669.92, 27,154.53 and 13,330

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Solution

The fourth proportional to 19,669.92, 27,154.53 and 13,330 is: 18,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.92 : 27,154.53 = 13,330 : x
  2. Step 2: Convert to fraction form
    19,669.92/27,154.53 = 13,330/x
  3. Step 3: Cross multiply
    19,669.92x = 27,154.53 × 13,330
  4. Step 4: Simplify right side
    19,669.92x = 361,969,884.90
  5. Step 5: Solve for x
    x = 361,969,884.90/19,669.92
  6. Step 6: Final answer
    x = 18,402.20

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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.