Home / 27,138.16-37,455.09-18,633.22

Finding the Fourth Proportional to 27,138.16, 37,455.09 and 18,633.22

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Solution

The fourth proportional to 27,138.16, 37,455.09 and 18,633.22 is: 25,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.16 : 37,455.09 = 18,633.22 : x
  2. Step 2: Convert to fraction form
    27,138.16/37,455.09 = 18,633.22/x
  3. Step 3: Cross multiply
    27,138.16x = 37,455.09 × 18,633.22
  4. Step 4: Simplify right side
    27,138.16x = 697,908,932.09
  5. Step 5: Solve for x
    x = 697,908,932.09/27,138.16
  6. Step 6: Final answer
    x = 25,716.88

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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.