Home / 43,438.48-65,113.44-17,128.64

Finding the Fourth Proportional to 43,438.48, 65,113.44 and 17,128.64

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Solution

The fourth proportional to 43,438.48, 65,113.44 and 17,128.64 is: 25,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,438.48 : 65,113.44 = 17,128.64 : x
  2. Step 2: Convert to fraction form
    43,438.48/65,113.44 = 17,128.64/x
  3. Step 3: Cross multiply
    43,438.48x = 65,113.44 × 17,128.64
  4. Step 4: Simplify right side
    43,438.48x = 1,115,304,672.92
  5. Step 5: Solve for x
    x = 1,115,304,672.92/43,438.48
  6. Step 6: Final answer
    x = 25,675.50

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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.