Home / 36,693.28-50,632.32-20,776.78

Finding the Fourth Proportional to 36,693.28, 50,632.32 and 20,776.78

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Solution

The fourth proportional to 36,693.28, 50,632.32 and 20,776.78 is: 28,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,693.28 : 50,632.32 = 20,776.78 : x
  2. Step 2: Convert to fraction form
    36,693.28/50,632.32 = 20,776.78/x
  3. Step 3: Cross multiply
    36,693.28x = 50,632.32 × 20,776.78
  4. Step 4: Simplify right side
    36,693.28x = 1,051,976,573.53
  5. Step 5: Solve for x
    x = 1,051,976,573.53/36,693.28
  6. Step 6: Final answer
    x = 28,669.46

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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.