Home / 43,720.84-65,580.66-12,556.08

Finding the Fourth Proportional to 43,720.84, 65,580.66 and 12,556.08

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Solution

The fourth proportional to 43,720.84, 65,580.66 and 12,556.08 is: 18,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720.84 : 65,580.66 = 12,556.08 : x
  2. Step 2: Convert to fraction form
    43,720.84/65,580.66 = 12,556.08/x
  3. Step 3: Cross multiply
    43,720.84x = 65,580.66 × 12,556.08
  4. Step 4: Simplify right side
    43,720.84x = 823,436,013.41
  5. Step 5: Solve for x
    x = 823,436,013.41/43,720.84
  6. Step 6: Final answer
    x = 18,833.95

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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.