Home / 28,438.36-39,223.38-17,107

Finding the Fourth Proportional to 28,438.36, 39,223.38 and 17,107

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Solution

The fourth proportional to 28,438.36, 39,223.38 and 17,107 is: 23,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.36 : 39,223.38 = 17,107 : x
  2. Step 2: Convert to fraction form
    28,438.36/39,223.38 = 17,107/x
  3. Step 3: Cross multiply
    28,438.36x = 39,223.38 × 17,107
  4. Step 4: Simplify right side
    28,438.36x = 670,994,361.66
  5. Step 5: Solve for x
    x = 670,994,361.66/28,438.36
  6. Step 6: Final answer
    x = 23,594.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.