Home / 21,505.10-29,676.44-11,944.68

Finding the Fourth Proportional to 21,505.10, 29,676.44 and 11,944.68

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Solution

The fourth proportional to 21,505.10, 29,676.44 and 11,944.68 is: 16,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.10 : 29,676.44 = 11,944.68 : x
  2. Step 2: Convert to fraction form
    21,505.10/29,676.44 = 11,944.68/x
  3. Step 3: Cross multiply
    21,505.10x = 29,676.44 × 11,944.68
  4. Step 4: Simplify right side
    21,505.10x = 354,475,579.34
  5. Step 5: Solve for x
    x = 354,475,579.34/21,505.10
  6. Step 6: Final answer
    x = 16,483.33

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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.