Home / 20,137.24-30,205.80-5,347.64

Finding the Fourth Proportional to 20,137.24, 30,205.80 and 5,347.64

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Solution

The fourth proportional to 20,137.24, 30,205.80 and 5,347.64 is: 8,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.24 : 30,205.80 = 5,347.64 : x
  2. Step 2: Convert to fraction form
    20,137.24/30,205.80 = 5,347.64/x
  3. Step 3: Cross multiply
    20,137.24x = 30,205.80 × 5,347.64
  4. Step 4: Simplify right side
    20,137.24x = 161,529,744.31
  5. Step 5: Solve for x
    x = 161,529,744.31/20,137.24
  6. Step 6: Final answer
    x = 8,021.44

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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.