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Finding the Fourth Proportional to 18,160.40, 25,063.86 and 10,203.22

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Solution

The fourth proportional to 18,160.40, 25,063.86 and 10,203.22 is: 14,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.40 : 25,063.86 = 10,203.22 : x
  2. Step 2: Convert to fraction form
    18,160.40/25,063.86 = 10,203.22/x
  3. Step 3: Cross multiply
    18,160.40x = 25,063.86 × 10,203.22
  4. Step 4: Simplify right side
    18,160.40x = 255,732,077.63
  5. Step 5: Solve for x
    x = 255,732,077.63/18,160.40
  6. Step 6: Final answer
    x = 14,081.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.