Home / 20,429.56-28,193.70-12,046.24

Finding the Fourth Proportional to 20,429.56, 28,193.70 and 12,046.24

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Solution

The fourth proportional to 20,429.56, 28,193.70 and 12,046.24 is: 16,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.56 : 28,193.70 = 12,046.24 : x
  2. Step 2: Convert to fraction form
    20,429.56/28,193.70 = 12,046.24/x
  3. Step 3: Cross multiply
    20,429.56x = 28,193.70 × 12,046.24
  4. Step 4: Simplify right side
    20,429.56x = 339,628,076.69
  5. Step 5: Solve for x
    x = 339,628,076.69/20,429.56
  6. Step 6: Final answer
    x = 16,624.35

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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.