Home / 27,945.69-38,545.52-18,977.62

Finding the Fourth Proportional to 27,945.69, 38,545.52 and 18,977.62

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Solution

The fourth proportional to 27,945.69, 38,545.52 and 18,977.62 is: 26,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.69 : 38,545.52 = 18,977.62 : x
  2. Step 2: Convert to fraction form
    27,945.69/38,545.52 = 18,977.62/x
  3. Step 3: Cross multiply
    27,945.69x = 38,545.52 × 18,977.62
  4. Step 4: Simplify right side
    27,945.69x = 731,502,183.82
  5. Step 5: Solve for x
    x = 731,502,183.82/27,945.69
  6. Step 6: Final answer
    x = 26,175.85

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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.