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Finding the Fourth Proportional to 17,922.25, 26,709.74 and 16,989.13

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Solution

The fourth proportional to 17,922.25, 26,709.74 and 16,989.13 is: 25,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,922.25 : 26,709.74 = 16,989.13 : x
  2. Step 2: Convert to fraction form
    17,922.25/26,709.74 = 16,989.13/x
  3. Step 3: Cross multiply
    17,922.25x = 26,709.74 × 16,989.13
  4. Step 4: Simplify right side
    17,922.25x = 453,775,245.13
  5. Step 5: Solve for x
    x = 453,775,245.13/17,922.25
  6. Step 6: Final answer
    x = 25,319.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.