Home / 18,336.04-27,518-13,418.38

Finding the Fourth Proportional to 18,336.04, 27,518 and 13,418.38

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Solution

The fourth proportional to 18,336.04, 27,518 and 13,418.38 is: 20,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.04 : 27,518 = 13,418.38 : x
  2. Step 2: Convert to fraction form
    18,336.04/27,518 = 13,418.38/x
  3. Step 3: Cross multiply
    18,336.04x = 27,518 × 13,418.38
  4. Step 4: Simplify right side
    18,336.04x = 369,246,980.84
  5. Step 5: Solve for x
    x = 369,246,980.84/18,336.04
  6. Step 6: Final answer
    x = 20,137.77

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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.