Home / 21,105.20-31,634.04-16,195.52

Finding the Fourth Proportional to 21,105.20, 31,634.04 and 16,195.52

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Solution

The fourth proportional to 21,105.20, 31,634.04 and 16,195.52 is: 24,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,105.20 : 31,634.04 = 16,195.52 : x
  2. Step 2: Convert to fraction form
    21,105.20/31,634.04 = 16,195.52/x
  3. Step 3: Cross multiply
    21,105.20x = 31,634.04 × 16,195.52
  4. Step 4: Simplify right side
    21,105.20x = 512,329,727.50
  5. Step 5: Solve for x
    x = 512,329,727.50/21,105.20
  6. Step 6: Final answer
    x = 24,275.05

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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.