Home / 27,190.81-40,788.15-11,379.93

Finding the Fourth Proportional to 27,190.81, 40,788.15 and 11,379.93

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Solution

The fourth proportional to 27,190.81, 40,788.15 and 11,379.93 is: 17,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,190.81 : 40,788.15 = 11,379.93 : x
  2. Step 2: Convert to fraction form
    27,190.81/40,788.15 = 11,379.93/x
  3. Step 3: Cross multiply
    27,190.81x = 40,788.15 × 11,379.93
  4. Step 4: Simplify right side
    27,190.81x = 464,166,160.21
  5. Step 5: Solve for x
    x = 464,166,160.21/27,190.81
  6. Step 6: Final answer
    x = 17,070.70

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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.