Home / 21,606.23-29,815.36-12,045.80

Finding the Fourth Proportional to 21,606.23, 29,815.36 and 12,045.80

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Solution

The fourth proportional to 21,606.23, 29,815.36 and 12,045.80 is: 16,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.23 : 29,815.36 = 12,045.80 : x
  2. Step 2: Convert to fraction form
    21,606.23/29,815.36 = 12,045.80/x
  3. Step 3: Cross multiply
    21,606.23x = 29,815.36 × 12,045.80
  4. Step 4: Simplify right side
    21,606.23x = 359,149,907.91
  5. Step 5: Solve for x
    x = 359,149,907.91/21,606.23
  6. Step 6: Final answer
    x = 16,622.51

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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.