Home / 21,697.80-29,942.82-12,266.34

Finding the Fourth Proportional to 21,697.80, 29,942.82 and 12,266.34

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Solution

The fourth proportional to 21,697.80, 29,942.82 and 12,266.34 is: 16,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,697.80 : 29,942.82 = 12,266.34 : x
  2. Step 2: Convert to fraction form
    21,697.80/29,942.82 = 12,266.34/x
  3. Step 3: Cross multiply
    21,697.80x = 29,942.82 × 12,266.34
  4. Step 4: Simplify right side
    21,697.80x = 367,288,810.68
  5. Step 5: Solve for x
    x = 367,288,810.68/21,697.80
  6. Step 6: Final answer
    x = 16,927.47

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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.