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Finding the Fourth Proportional to 18,039.69, 27,053.05 and 10,545.81

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Solution

The fourth proportional to 18,039.69, 27,053.05 and 10,545.81 is: 15,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.69 : 27,053.05 = 10,545.81 : x
  2. Step 2: Convert to fraction form
    18,039.69/27,053.05 = 10,545.81/x
  3. Step 3: Cross multiply
    18,039.69x = 27,053.05 × 10,545.81
  4. Step 4: Simplify right side
    18,039.69x = 285,296,272.49
  5. Step 5: Solve for x
    x = 285,296,272.49/18,039.69
  6. Step 6: Final answer
    x = 15,814.92

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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.