Home / 19,890.20-29,792.10-16,002.20

Finding the Fourth Proportional to 19,890.20, 29,792.10 and 16,002.20

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Solution

The fourth proportional to 19,890.20, 29,792.10 and 16,002.20 is: 23,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.20 : 29,792.10 = 16,002.20 : x
  2. Step 2: Convert to fraction form
    19,890.20/29,792.10 = 16,002.20/x
  3. Step 3: Cross multiply
    19,890.20x = 29,792.10 × 16,002.20
  4. Step 4: Simplify right side
    19,890.20x = 476,739,142.62
  5. Step 5: Solve for x
    x = 476,739,142.62/19,890.20
  6. Step 6: Final answer
    x = 23,968.54

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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.