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Finding the Fourth Proportional to 43,445.92, 65,168.19 and 13,863.58

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Solution

The fourth proportional to 43,445.92, 65,168.19 and 13,863.58 is: 20,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,445.92 : 65,168.19 = 13,863.58 : x
  2. Step 2: Convert to fraction form
    43,445.92/65,168.19 = 13,863.58/x
  3. Step 3: Cross multiply
    43,445.92x = 65,168.19 × 13,863.58
  4. Step 4: Simplify right side
    43,445.92x = 903,464,415.52
  5. Step 5: Solve for x
    x = 903,464,415.52/43,445.92
  6. Step 6: Final answer
    x = 20,795.15

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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.