Home / 19,986.60-29,927.10-16,019.40

Finding the Fourth Proportional to 19,986.60, 29,927.10 and 16,019.40

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Solution

The fourth proportional to 19,986.60, 29,927.10 and 16,019.40 is: 23,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.60 : 29,927.10 = 16,019.40 : x
  2. Step 2: Convert to fraction form
    19,986.60/29,927.10 = 16,019.40/x
  3. Step 3: Cross multiply
    19,986.60x = 29,927.10 × 16,019.40
  4. Step 4: Simplify right side
    19,986.60x = 479,414,185.74
  5. Step 5: Solve for x
    x = 479,414,185.74/19,986.60
  6. Step 6: Final answer
    x = 23,986.78

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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.