Home / 20,383.42-30,571.85-5,588.90

Finding the Fourth Proportional to 20,383.42, 30,571.85 and 5,588.90

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Solution

The fourth proportional to 20,383.42, 30,571.85 and 5,588.90 is: 8,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.42 : 30,571.85 = 5,588.90 : x
  2. Step 2: Convert to fraction form
    20,383.42/30,571.85 = 5,588.90/x
  3. Step 3: Cross multiply
    20,383.42x = 30,571.85 × 5,588.90
  4. Step 4: Simplify right side
    20,383.42x = 170,863,127.11
  5. Step 5: Solve for x
    x = 170,863,127.11/20,383.42
  6. Step 6: Final answer
    x = 8,382.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.