Home / 19,919.10-29,813.85-15,512.70

Finding the Fourth Proportional to 19,919.10, 29,813.85 and 15,512.70

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Solution

The fourth proportional to 19,919.10, 29,813.85 and 15,512.70 is: 23,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.10 : 29,813.85 = 15,512.70 : x
  2. Step 2: Convert to fraction form
    19,919.10/29,813.85 = 15,512.70/x
  3. Step 3: Cross multiply
    19,919.10x = 29,813.85 × 15,512.70
  4. Step 4: Simplify right side
    19,919.10x = 462,493,310.90
  5. Step 5: Solve for x
    x = 462,493,310.90/19,919.10
  6. Step 6: Final answer
    x = 23,218.58

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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.