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Finding the Fourth Proportional to 44,476.60, 66,704.48 and 12,878.21

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Solution

The fourth proportional to 44,476.60, 66,704.48 and 12,878.21 is: 19,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,476.60 : 66,704.48 = 12,878.21 : x
  2. Step 2: Convert to fraction form
    44,476.60/66,704.48 = 12,878.21/x
  3. Step 3: Cross multiply
    44,476.60x = 66,704.48 × 12,878.21
  4. Step 4: Simplify right side
    44,476.60x = 859,034,301.38
  5. Step 5: Solve for x
    x = 859,034,301.38/44,476.60
  6. Step 6: Final answer
    x = 19,314.30

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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.