Home / 38,328.89-52,893.85-21,561.89

Finding the Fourth Proportional to 38,328.89, 52,893.85 and 21,561.89

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Solution

The fourth proportional to 38,328.89, 52,893.85 and 21,561.89 is: 29,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,328.89 : 52,893.85 = 21,561.89 : x
  2. Step 2: Convert to fraction form
    38,328.89/52,893.85 = 21,561.89/x
  3. Step 3: Cross multiply
    38,328.89x = 52,893.85 × 21,561.89
  4. Step 4: Simplify right side
    38,328.89x = 1,140,491,375.38
  5. Step 5: Solve for x
    x = 1,140,491,375.38/38,328.89
  6. Step 6: Final answer
    x = 29,755.40

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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.