Home / 43,915.19-65,885.11-17,638.38

Finding the Fourth Proportional to 43,915.19, 65,885.11 and 17,638.38

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Solution

The fourth proportional to 43,915.19, 65,885.11 and 17,638.38 is: 26,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,915.19 : 65,885.11 = 17,638.38 : x
  2. Step 2: Convert to fraction form
    43,915.19/65,885.11 = 17,638.38/x
  3. Step 3: Cross multiply
    43,915.19x = 65,885.11 × 17,638.38
  4. Step 4: Simplify right side
    43,915.19x = 1,162,106,562.43
  5. Step 5: Solve for x
    x = 1,162,106,562.43/43,915.19
  6. Step 6: Final answer
    x = 26,462.52

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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.