Home / 43,515.09-65,240.73-13,915.89

Finding the Fourth Proportional to 43,515.09, 65,240.73 and 13,915.89

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Solution

The fourth proportional to 43,515.09, 65,240.73 and 13,915.89 is: 20,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.09 : 65,240.73 = 13,915.89 : x
  2. Step 2: Convert to fraction form
    43,515.09/65,240.73 = 13,915.89/x
  3. Step 3: Cross multiply
    43,515.09x = 65,240.73 × 13,915.89
  4. Step 4: Simplify right side
    43,515.09x = 907,882,822.20
  5. Step 5: Solve for x
    x = 907,882,822.20/43,515.09
  6. Step 6: Final answer
    x = 20,863.63

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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.