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Finding the Fourth Proportional to 44,654.56, 66,981.80 and 13,489.80

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Solution

The fourth proportional to 44,654.56, 66,981.80 and 13,489.80 is: 20,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,654.56 : 66,981.80 = 13,489.80 : x
  2. Step 2: Convert to fraction form
    44,654.56/66,981.80 = 13,489.80/x
  3. Step 3: Cross multiply
    44,654.56x = 66,981.80 × 13,489.80
  4. Step 4: Simplify right side
    44,654.56x = 903,571,085.64
  5. Step 5: Solve for x
    x = 903,571,085.64/44,654.56
  6. Step 6: Final answer
    x = 20,234.69

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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.