Home / 21,504.08-29,676.96-14,321.68

Finding the Fourth Proportional to 21,504.08, 29,676.96 and 14,321.68

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Solution

The fourth proportional to 21,504.08, 29,676.96 and 14,321.68 is: 19,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.08 : 29,676.96 = 14,321.68 : x
  2. Step 2: Convert to fraction form
    21,504.08/29,676.96 = 14,321.68/x
  3. Step 3: Cross multiply
    21,504.08x = 29,676.96 × 14,321.68
  4. Step 4: Simplify right side
    21,504.08x = 425,023,924.49
  5. Step 5: Solve for x
    x = 425,023,924.49/21,504.08
  6. Step 6: Final answer
    x = 19,764.80

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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.