Home / 19,143.10-28,717.80-5,992.30

Finding the Fourth Proportional to 19,143.10, 28,717.80 and 5,992.30

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Solution

The fourth proportional to 19,143.10, 28,717.80 and 5,992.30 is: 8,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.10 : 28,717.80 = 5,992.30 : x
  2. Step 2: Convert to fraction form
    19,143.10/28,717.80 = 5,992.30/x
  3. Step 3: Cross multiply
    19,143.10x = 28,717.80 × 5,992.30
  4. Step 4: Simplify right side
    19,143.10x = 172,085,672.94
  5. Step 5: Solve for x
    x = 172,085,672.94/19,143.10
  6. Step 6: Final answer
    x = 8,989.44

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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.