Home / 20,469.44-30,533.64-20,130.72

Finding the Fourth Proportional to 20,469.44, 30,533.64 and 20,130.72

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Solution

The fourth proportional to 20,469.44, 30,533.64 and 20,130.72 is: 30,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.44 : 30,533.64 = 20,130.72 : x
  2. Step 2: Convert to fraction form
    20,469.44/30,533.64 = 20,130.72/x
  3. Step 3: Cross multiply
    20,469.44x = 30,533.64 × 20,130.72
  4. Step 4: Simplify right side
    20,469.44x = 614,664,157.42
  5. Step 5: Solve for x
    x = 614,664,157.42/20,469.44
  6. Step 6: Final answer
    x = 30,028.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.