Home / 18,718.25-28,046.53-16,789.13

Finding the Fourth Proportional to 18,718.25, 28,046.53 and 16,789.13

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Solution

The fourth proportional to 18,718.25, 28,046.53 and 16,789.13 is: 25,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.25 : 28,046.53 = 16,789.13 : x
  2. Step 2: Convert to fraction form
    18,718.25/28,046.53 = 16,789.13/x
  3. Step 3: Cross multiply
    18,718.25x = 28,046.53 × 16,789.13
  4. Step 4: Simplify right side
    18,718.25x = 470,876,838.22
  5. Step 5: Solve for x
    x = 470,876,838.22/18,718.25
  6. Step 6: Final answer
    x = 25,156.03

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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.