Home / 43,411.65-65,138.58-19,734.64

Finding the Fourth Proportional to 43,411.65, 65,138.58 and 19,734.64

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Solution

The fourth proportional to 43,411.65, 65,138.58 and 19,734.64 is: 29,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,411.65 : 65,138.58 = 19,734.64 : x
  2. Step 2: Convert to fraction form
    43,411.65/65,138.58 = 19,734.64/x
  3. Step 3: Cross multiply
    43,411.65x = 65,138.58 × 19,734.64
  4. Step 4: Simplify right side
    43,411.65x = 1,285,486,263.56
  5. Step 5: Solve for x
    x = 1,285,486,263.56/43,411.65
  6. Step 6: Final answer
    x = 29,611.55

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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.