Home / 27,788.72-41,663.64-13,930.16

Finding the Fourth Proportional to 27,788.72, 41,663.64 and 13,930.16

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Solution

The fourth proportional to 27,788.72, 41,663.64 and 13,930.16 is: 20,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.72 : 41,663.64 = 13,930.16 : x
  2. Step 2: Convert to fraction form
    27,788.72/41,663.64 = 13,930.16/x
  3. Step 3: Cross multiply
    27,788.72x = 41,663.64 × 13,930.16
  4. Step 4: Simplify right side
    27,788.72x = 580,381,171.38
  5. Step 5: Solve for x
    x = 580,381,171.38/27,788.72
  6. Step 6: Final answer
    x = 20,885.49

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1.5x scale

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.