Home / 36,728.78-50,685.06-20,812.89

Finding the Fourth Proportional to 36,728.78, 50,685.06 and 20,812.89

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Solution

The fourth proportional to 36,728.78, 50,685.06 and 20,812.89 is: 28,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,728.78 : 50,685.06 = 20,812.89 : x
  2. Step 2: Convert to fraction form
    36,728.78/50,685.06 = 20,812.89/x
  3. Step 3: Cross multiply
    36,728.78x = 50,685.06 × 20,812.89
  4. Step 4: Simplify right side
    36,728.78x = 1,054,902,578.42
  5. Step 5: Solve for x
    x = 1,054,902,578.42/36,728.78
  6. Step 6: Final answer
    x = 28,721.41

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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.