Home / 21,537.09-29,722.82-12,106.53

Finding the Fourth Proportional to 21,537.09, 29,722.82 and 12,106.53

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Solution

The fourth proportional to 21,537.09, 29,722.82 and 12,106.53 is: 16,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.09 : 29,722.82 = 12,106.53 : x
  2. Step 2: Convert to fraction form
    21,537.09/29,722.82 = 12,106.53/x
  3. Step 3: Cross multiply
    21,537.09x = 29,722.82 × 12,106.53
  4. Step 4: Simplify right side
    21,537.09x = 359,840,151.48
  5. Step 5: Solve for x
    x = 359,840,151.48/21,537.09
  6. Step 6: Final answer
    x = 16,707.93

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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.