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Finding the Fourth Proportional to 18,009.29, 27,000.16 and 14,879.45

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Solution

The fourth proportional to 18,009.29, 27,000.16 and 14,879.45 is: 22,307.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.29 : 27,000.16 = 14,879.45 : x
  2. Step 2: Convert to fraction form
    18,009.29/27,000.16 = 14,879.45/x
  3. Step 3: Cross multiply
    18,009.29x = 27,000.16 × 14,879.45
  4. Step 4: Simplify right side
    18,009.29x = 401,747,358.51
  5. Step 5: Solve for x
    x = 401,747,358.51/18,009.29
  6. Step 6: Final answer
    x = 22,307.79

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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.