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Finding the Fourth Proportional to 18,841.52, 28,262.32 and 14,102.62

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Solution

The fourth proportional to 18,841.52, 28,262.32 and 14,102.62 is: 21,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.52 : 28,262.32 = 14,102.62 : x
  2. Step 2: Convert to fraction form
    18,841.52/28,262.32 = 14,102.62/x
  3. Step 3: Cross multiply
    18,841.52x = 28,262.32 × 14,102.62
  4. Step 4: Simplify right side
    18,841.52x = 398,572,653.37
  5. Step 5: Solve for x
    x = 398,572,653.37/18,841.52
  6. Step 6: Final answer
    x = 21,153.95

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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.