Home / 39,672.09-54,747.99-21,766.77

Finding the Fourth Proportional to 39,672.09, 54,747.99 and 21,766.77

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Solution

The fourth proportional to 39,672.09, 54,747.99 and 21,766.77 is: 30,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.09 : 54,747.99 = 21,766.77 : x
  2. Step 2: Convert to fraction form
    39,672.09/54,747.99 = 21,766.77/x
  3. Step 3: Cross multiply
    39,672.09x = 54,747.99 × 21,766.77
  4. Step 4: Simplify right side
    39,672.09x = 1,191,686,906.29
  5. Step 5: Solve for x
    x = 1,191,686,906.29/39,672.09
  6. Step 6: Final answer
    x = 30,038.42

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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.