Home / 18,893.28-28,302.93-14,489.18

Finding the Fourth Proportional to 18,893.28, 28,302.93 and 14,489.18

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Solution

The fourth proportional to 18,893.28, 28,302.93 and 14,489.18 is: 21,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.28 : 28,302.93 = 14,489.18 : x
  2. Step 2: Convert to fraction form
    18,893.28/28,302.93 = 14,489.18/x
  3. Step 3: Cross multiply
    18,893.28x = 28,302.93 × 14,489.18
  4. Step 4: Simplify right side
    18,893.28x = 410,086,105.78
  5. Step 5: Solve for x
    x = 410,086,105.78/18,893.28
  6. Step 6: Final answer
    x = 21,705.40

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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.