Home / 28,115.12-38,792.58-16,788.62

Finding the Fourth Proportional to 28,115.12, 38,792.58 and 16,788.62

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Solution

The fourth proportional to 28,115.12, 38,792.58 and 16,788.62 is: 23,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.12 : 38,792.58 = 16,788.62 : x
  2. Step 2: Convert to fraction form
    28,115.12/38,792.58 = 16,788.62/x
  3. Step 3: Cross multiply
    28,115.12x = 38,792.58 × 16,788.62
  4. Step 4: Simplify right side
    28,115.12x = 651,273,884.44
  5. Step 5: Solve for x
    x = 651,273,884.44/28,115.12
  6. Step 6: Final answer
    x = 23,164.54

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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.