Home / 18,163.24-27,141.48-13,630.68

Finding the Fourth Proportional to 18,163.24, 27,141.48 and 13,630.68

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Solution

The fourth proportional to 18,163.24, 27,141.48 and 13,630.68 is: 20,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.24 : 27,141.48 = 13,630.68 : x
  2. Step 2: Convert to fraction form
    18,163.24/27,141.48 = 13,630.68/x
  3. Step 3: Cross multiply
    18,163.24x = 27,141.48 × 13,630.68
  4. Step 4: Simplify right side
    18,163.24x = 369,956,828.61
  5. Step 5: Solve for x
    x = 369,956,828.61/18,163.24
  6. Step 6: Final answer
    x = 20,368.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.