Home / 19,830.42-27,365.85-11,874.60

Finding the Fourth Proportional to 19,830.42, 27,365.85 and 11,874.60

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Solution

The fourth proportional to 19,830.42, 27,365.85 and 11,874.60 is: 16,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.42 : 27,365.85 = 11,874.60 : x
  2. Step 2: Convert to fraction form
    19,830.42/27,365.85 = 11,874.60/x
  3. Step 3: Cross multiply
    19,830.42x = 27,365.85 × 11,874.60
  4. Step 4: Simplify right side
    19,830.42x = 324,958,522.41
  5. Step 5: Solve for x
    x = 324,958,522.41/19,830.42
  6. Step 6: Final answer
    x = 16,386.87

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1.5x scale

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.