Home / 19,342.20-29,013.30-11,922.60

Finding the Fourth Proportional to 19,342.20, 29,013.30 and 11,922.60

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Solution

The fourth proportional to 19,342.20, 29,013.30 and 11,922.60 is: 17,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,342.20 : 29,013.30 = 11,922.60 : x
  2. Step 2: Convert to fraction form
    19,342.20/29,013.30 = 11,922.60/x
  3. Step 3: Cross multiply
    19,342.20x = 29,013.30 × 11,922.60
  4. Step 4: Simplify right side
    19,342.20x = 345,913,970.58
  5. Step 5: Solve for x
    x = 345,913,970.58/19,342.20
  6. Step 6: Final answer
    x = 17,883.90

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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.