Home / 36,305.84-50,102.88-20,391.68

Finding the Fourth Proportional to 36,305.84, 50,102.88 and 20,391.68

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Solution

The fourth proportional to 36,305.84, 50,102.88 and 20,391.68 is: 28,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,305.84 : 50,102.88 = 20,391.68 : x
  2. Step 2: Convert to fraction form
    36,305.84/50,102.88 = 20,391.68/x
  3. Step 3: Cross multiply
    36,305.84x = 50,102.88 × 20,391.68
  4. Step 4: Simplify right side
    36,305.84x = 1,021,681,896.04
  5. Step 5: Solve for x
    x = 1,021,681,896.04/36,305.84
  6. Step 6: Final answer
    x = 28,140.98

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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.