Home / 18,145.38-27,192.54-14,431.12

Finding the Fourth Proportional to 18,145.38, 27,192.54 and 14,431.12

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Solution

The fourth proportional to 18,145.38, 27,192.54 and 14,431.12 is: 21,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.38 : 27,192.54 = 14,431.12 : x
  2. Step 2: Convert to fraction form
    18,145.38/27,192.54 = 14,431.12/x
  3. Step 3: Cross multiply
    18,145.38x = 27,192.54 × 14,431.12
  4. Step 4: Simplify right side
    18,145.38x = 392,418,807.84
  5. Step 5: Solve for x
    x = 392,418,807.84/18,145.38
  6. Step 6: Final answer
    x = 21,626.38

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1.5x scale

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.