Home / 28,977.92-43,389.01-18,390.62

Finding the Fourth Proportional to 28,977.92, 43,389.01 and 18,390.62

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Solution

The fourth proportional to 28,977.92, 43,389.01 and 18,390.62 is: 27,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.92 : 43,389.01 = 18,390.62 : x
  2. Step 2: Convert to fraction form
    28,977.92/43,389.01 = 18,390.62/x
  3. Step 3: Cross multiply
    28,977.92x = 43,389.01 × 18,390.62
  4. Step 4: Simplify right side
    28,977.92x = 797,950,795.09
  5. Step 5: Solve for x
    x = 797,950,795.09/28,977.92
  6. Step 6: Final answer
    x = 27,536.51

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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.