Home / 19,230.10-28,814.10-10,885.30

Finding the Fourth Proportional to 19,230.10, 28,814.10 and 10,885.30

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Solution

The fourth proportional to 19,230.10, 28,814.10 and 10,885.30 is: 16,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.10 : 28,814.10 = 10,885.30 : x
  2. Step 2: Convert to fraction form
    19,230.10/28,814.10 = 10,885.30/x
  3. Step 3: Cross multiply
    19,230.10x = 28,814.10 × 10,885.30
  4. Step 4: Simplify right side
    19,230.10x = 313,650,122.73
  5. Step 5: Solve for x
    x = 313,650,122.73/19,230.10
  6. Step 6: Final answer
    x = 16,310.37

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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.