Home / 43,286.59-64,941.39-13,705.03

Finding the Fourth Proportional to 43,286.59, 64,941.39 and 13,705.03

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Solution

The fourth proportional to 43,286.59, 64,941.39 and 13,705.03 is: 20,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,286.59 : 64,941.39 = 13,705.03 : x
  2. Step 2: Convert to fraction form
    43,286.59/64,941.39 = 13,705.03/x
  3. Step 3: Cross multiply
    43,286.59x = 64,941.39 × 13,705.03
  4. Step 4: Simplify right side
    43,286.59x = 890,023,698.19
  5. Step 5: Solve for x
    x = 890,023,698.19/43,286.59
  6. Step 6: Final answer
    x = 20,561.19

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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.