Home / 36,639.57-50,561.77-20,724

Finding the Fourth Proportional to 36,639.57, 50,561.77 and 20,724

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Solution

The fourth proportional to 36,639.57, 50,561.77 and 20,724 is: 28,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,639.57 : 50,561.77 = 20,724 : x
  2. Step 2: Convert to fraction form
    36,639.57/50,561.77 = 20,724/x
  3. Step 3: Cross multiply
    36,639.57x = 50,561.77 × 20,724
  4. Step 4: Simplify right side
    36,639.57x = 1,047,842,121.48
  5. Step 5: Solve for x
    x = 1,047,842,121.48/36,639.57
  6. Step 6: Final answer
    x = 28,598.65

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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.