Home / 19,350.90-29,003.67-8,940.78

Finding the Fourth Proportional to 19,350.90, 29,003.67 and 8,940.78

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Solution

The fourth proportional to 19,350.90, 29,003.67 and 8,940.78 is: 13,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.90 : 29,003.67 = 8,940.78 : x
  2. Step 2: Convert to fraction form
    19,350.90/29,003.67 = 8,940.78/x
  3. Step 3: Cross multiply
    19,350.90x = 29,003.67 × 8,940.78
  4. Step 4: Simplify right side
    19,350.90x = 259,315,432.66
  5. Step 5: Solve for x
    x = 259,315,432.66/19,350.90
  6. Step 6: Final answer
    x = 13,400.69

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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.