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Finding the Fourth Proportional to 18,000.96, 26,802 and 17,755.20

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Solution

The fourth proportional to 18,000.96, 26,802 and 17,755.20 is: 26,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.96 : 26,802 = 17,755.20 : x
  2. Step 2: Convert to fraction form
    18,000.96/26,802 = 17,755.20/x
  3. Step 3: Cross multiply
    18,000.96x = 26,802 × 17,755.20
  4. Step 4: Simplify right side
    18,000.96x = 475,874,870.40
  5. Step 5: Solve for x
    x = 475,874,870.40/18,000.96
  6. Step 6: Final answer
    x = 26,436.08

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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.