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Finding the Fourth Proportional to 36,804.78, 50,792.16 and 20,890.71

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Solution

The fourth proportional to 36,804.78, 50,792.16 and 20,890.71 is: 28,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,804.78 : 50,792.16 = 20,890.71 : x
  2. Step 2: Convert to fraction form
    36,804.78/50,792.16 = 20,890.71/x
  3. Step 3: Cross multiply
    36,804.78x = 50,792.16 × 20,890.71
  4. Step 4: Simplify right side
    36,804.78x = 1,061,084,363.17
  5. Step 5: Solve for x
    x = 1,061,084,363.17/36,804.78
  6. Step 6: Final answer
    x = 28,830.07

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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.