Home / 43,905.88-65,869.62-12,740.68

Finding the Fourth Proportional to 43,905.88, 65,869.62 and 12,740.68

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Solution

The fourth proportional to 43,905.88, 65,869.62 and 12,740.68 is: 19,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.88 : 65,869.62 = 12,740.68 : x
  2. Step 2: Convert to fraction form
    43,905.88/65,869.62 = 12,740.68/x
  3. Step 3: Cross multiply
    43,905.88x = 65,869.62 × 12,740.68
  4. Step 4: Simplify right side
    43,905.88x = 839,223,750.14
  5. Step 5: Solve for x
    x = 839,223,750.14/43,905.88
  6. Step 6: Final answer
    x = 19,114.15

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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.