Home / 28,939.72-43,379.98-19,580.73

Finding the Fourth Proportional to 28,939.72, 43,379.98 and 19,580.73

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Solution

The fourth proportional to 28,939.72, 43,379.98 and 19,580.73 is: 29,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.72 : 43,379.98 = 19,580.73 : x
  2. Step 2: Convert to fraction form
    28,939.72/43,379.98 = 19,580.73/x
  3. Step 3: Cross multiply
    28,939.72x = 43,379.98 × 19,580.73
  4. Step 4: Simplify right side
    28,939.72x = 849,411,723.84
  5. Step 5: Solve for x
    x = 849,411,723.84/28,939.72
  6. Step 6: Final answer
    x = 29,351.07

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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.