Home / 28,093.85-38,770.70-16,157.20

Finding the Fourth Proportional to 28,093.85, 38,770.70 and 16,157.20

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Solution

The fourth proportional to 28,093.85, 38,770.70 and 16,157.20 is: 22,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.85 : 38,770.70 = 16,157.20 : x
  2. Step 2: Convert to fraction form
    28,093.85/38,770.70 = 16,157.20/x
  3. Step 3: Cross multiply
    28,093.85x = 38,770.70 × 16,157.20
  4. Step 4: Simplify right side
    28,093.85x = 626,425,915.66
  5. Step 5: Solve for x
    x = 626,425,915.66/28,093.85
  6. Step 6: Final answer
    x = 22,297.62

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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.