Home / 28,107.60-38,792.34-16,170.64

Finding the Fourth Proportional to 28,107.60, 38,792.34 and 16,170.64

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Solution

The fourth proportional to 28,107.60, 38,792.34 and 16,170.64 is: 22,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.60 : 38,792.34 = 16,170.64 : x
  2. Step 2: Convert to fraction form
    28,107.60/38,792.34 = 16,170.64/x
  3. Step 3: Cross multiply
    28,107.60x = 38,792.34 × 16,170.64
  4. Step 4: Simplify right side
    28,107.60x = 627,296,964.90
  5. Step 5: Solve for x
    x = 627,296,964.90/28,107.60
  6. Step 6: Final answer
    x = 22,317.70

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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.