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Finding the Fourth Proportional to 18,021.25, 26,994.21 and 14,492.21

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Solution

The fourth proportional to 18,021.25, 26,994.21 and 14,492.21 is: 21,708.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.25 : 26,994.21 = 14,492.21 : x
  2. Step 2: Convert to fraction form
    18,021.25/26,994.21 = 14,492.21/x
  3. Step 3: Cross multiply
    18,021.25x = 26,994.21 × 14,492.21
  4. Step 4: Simplify right side
    18,021.25x = 391,205,570.79
  5. Step 5: Solve for x
    x = 391,205,570.79/18,021.25
  6. Step 6: Final answer
    x = 21,708.01

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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.