Home / 18,129.72-27,318.09-14,914.80

Finding the Fourth Proportional to 18,129.72, 27,318.09 and 14,914.80

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Solution

The fourth proportional to 18,129.72, 27,318.09 and 14,914.80 is: 22,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.72 : 27,318.09 = 14,914.80 : x
  2. Step 2: Convert to fraction form
    18,129.72/27,318.09 = 14,914.80/x
  3. Step 3: Cross multiply
    18,129.72x = 27,318.09 × 14,914.80
  4. Step 4: Simplify right side
    18,129.72x = 407,443,848.73
  5. Step 5: Solve for x
    x = 407,443,848.73/18,129.72
  6. Step 6: Final answer
    x = 22,473.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.