Home / 27,781.81-41,683.16-16,543.64

Finding the Fourth Proportional to 27,781.81, 41,683.16 and 16,543.64

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Solution

The fourth proportional to 27,781.81, 41,683.16 and 16,543.64 is: 24,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.81 : 41,683.16 = 16,543.64 : x
  2. Step 2: Convert to fraction form
    27,781.81/41,683.16 = 16,543.64/x
  3. Step 3: Cross multiply
    27,781.81x = 41,683.16 × 16,543.64
  4. Step 4: Simplify right side
    27,781.81x = 689,591,110.38
  5. Step 5: Solve for x
    x = 689,591,110.38/27,781.81
  6. Step 6: Final answer
    x = 24,821.68

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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.