Home / 28,245.32-38,983.62-16,307

Finding the Fourth Proportional to 28,245.32, 38,983.62 and 16,307

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Solution

The fourth proportional to 28,245.32, 38,983.62 and 16,307 is: 22,506.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.32 : 38,983.62 = 16,307 : x
  2. Step 2: Convert to fraction form
    28,245.32/38,983.62 = 16,307/x
  3. Step 3: Cross multiply
    28,245.32x = 38,983.62 × 16,307
  4. Step 4: Simplify right side
    28,245.32x = 635,705,891.34
  5. Step 5: Solve for x
    x = 635,705,891.34/28,245.32
  6. Step 6: Final answer
    x = 22,506.59

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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.