Home / 21,165.92-29,209.28-11,606.68

Finding the Fourth Proportional to 21,165.92, 29,209.28 and 11,606.68

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Solution

The fourth proportional to 21,165.92, 29,209.28 and 11,606.68 is: 16,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.92 : 29,209.28 = 11,606.68 : x
  2. Step 2: Convert to fraction form
    21,165.92/29,209.28 = 11,606.68/x
  3. Step 3: Cross multiply
    21,165.92x = 29,209.28 × 11,606.68
  4. Step 4: Simplify right side
    21,165.92x = 339,022,765.99
  5. Step 5: Solve for x
    x = 339,022,765.99/21,165.92
  6. Step 6: Final answer
    x = 16,017.39

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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.