Home / 19,420.33-29,110.28-13,180.85

Finding the Fourth Proportional to 19,420.33, 29,110.28 and 13,180.85

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Solution

The fourth proportional to 19,420.33, 29,110.28 and 13,180.85 is: 19,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.33 : 29,110.28 = 13,180.85 : x
  2. Step 2: Convert to fraction form
    19,420.33/29,110.28 = 13,180.85/x
  3. Step 3: Cross multiply
    19,420.33x = 29,110.28 × 13,180.85
  4. Step 4: Simplify right side
    19,420.33x = 383,698,121.54
  5. Step 5: Solve for x
    x = 383,698,121.54/19,420.33
  6. Step 6: Final answer
    x = 19,757.55

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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.