Home / 28,408.32-39,199.68-17,228.16

Finding the Fourth Proportional to 28,408.32, 39,199.68 and 17,228.16

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Solution

The fourth proportional to 28,408.32, 39,199.68 and 17,228.16 is: 23,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.32 : 39,199.68 = 17,228.16 : x
  2. Step 2: Convert to fraction form
    28,408.32/39,199.68 = 17,228.16/x
  3. Step 3: Cross multiply
    28,408.32x = 39,199.68 × 17,228.16
  4. Step 4: Simplify right side
    28,408.32x = 675,338,358.99
  5. Step 5: Solve for x
    x = 675,338,358.99/28,408.32
  6. Step 6: Final answer
    x = 23,772.56

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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.