Home / 29,121.54-43,682.31-19,323.42

Finding the Fourth Proportional to 29,121.54, 43,682.31 and 19,323.42

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Solution

The fourth proportional to 29,121.54, 43,682.31 and 19,323.42 is: 28,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.54 : 43,682.31 = 19,323.42 : x
  2. Step 2: Convert to fraction form
    29,121.54/43,682.31 = 19,323.42/x
  3. Step 3: Cross multiply
    29,121.54x = 43,682.31 × 19,323.42
  4. Step 4: Simplify right side
    29,121.54x = 844,091,622.70
  5. Step 5: Solve for x
    x = 844,091,622.70/29,121.54
  6. Step 6: Final answer
    x = 28,985.13

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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.