Home / 23,645.40-35,429.70-19,728.60

Finding the Fourth Proportional to 23,645.40, 35,429.70 and 19,728.60

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Solution

The fourth proportional to 23,645.40, 35,429.70 and 19,728.60 is: 29,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,645.40 : 35,429.70 = 19,728.60 : x
  2. Step 2: Convert to fraction form
    23,645.40/35,429.70 = 19,728.60/x
  3. Step 3: Cross multiply
    23,645.40x = 35,429.70 × 19,728.60
  4. Step 4: Simplify right side
    23,645.40x = 698,978,379.42
  5. Step 5: Solve for x
    x = 698,978,379.42/23,645.40
  6. Step 6: Final answer
    x = 29,560.86

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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.