Home / 21,625.50-29,846.16-12,676.56

Finding the Fourth Proportional to 21,625.50, 29,846.16 and 12,676.56

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Solution

The fourth proportional to 21,625.50, 29,846.16 and 12,676.56 is: 17,495.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.50 : 29,846.16 = 12,676.56 : x
  2. Step 2: Convert to fraction form
    21,625.50/29,846.16 = 12,676.56/x
  3. Step 3: Cross multiply
    21,625.50x = 29,846.16 × 12,676.56
  4. Step 4: Simplify right side
    21,625.50x = 378,346,638.01
  5. Step 5: Solve for x
    x = 378,346,638.01/21,625.50
  6. Step 6: Final answer
    x = 17,495.39

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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.