Home / 28,170.58-38,872.74-16,837.81

Finding the Fourth Proportional to 28,170.58, 38,872.74 and 16,837.81

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Solution

The fourth proportional to 28,170.58, 38,872.74 and 16,837.81 is: 23,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.58 : 38,872.74 = 16,837.81 : x
  2. Step 2: Convert to fraction form
    28,170.58/38,872.74 = 16,837.81/x
  3. Step 3: Cross multiply
    28,170.58x = 38,872.74 × 16,837.81
  4. Step 4: Simplify right side
    28,170.58x = 654,531,810.30
  5. Step 5: Solve for x
    x = 654,531,810.30/28,170.58
  6. Step 6: Final answer
    x = 23,234.59

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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.