Home / 20,606.40-28,435.32-11,654.82

Finding the Fourth Proportional to 20,606.40, 28,435.32 and 11,654.82

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Solution

The fourth proportional to 20,606.40, 28,435.32 and 11,654.82 is: 16,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.40 : 28,435.32 = 11,654.82 : x
  2. Step 2: Convert to fraction form
    20,606.40/28,435.32 = 11,654.82/x
  3. Step 3: Cross multiply
    20,606.40x = 28,435.32 × 11,654.82
  4. Step 4: Simplify right side
    20,606.40x = 331,408,536.24
  5. Step 5: Solve for x
    x = 331,408,536.24/20,606.40
  6. Step 6: Final answer
    x = 16,082.80

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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.