Home / 43,585.46-65,321.99-21,090.85

Finding the Fourth Proportional to 43,585.46, 65,321.99 and 21,090.85

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Solution

The fourth proportional to 43,585.46, 65,321.99 and 21,090.85 is: 31,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,585.46 : 65,321.99 = 21,090.85 : x
  2. Step 2: Convert to fraction form
    43,585.46/65,321.99 = 21,090.85/x
  3. Step 3: Cross multiply
    43,585.46x = 65,321.99 × 21,090.85
  4. Step 4: Simplify right side
    43,585.46x = 1,377,696,292.79
  5. Step 5: Solve for x
    x = 1,377,696,292.79/43,585.46
  6. Step 6: Final answer
    x = 31,609.08

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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.