Home / 21,063.24-31,604.03-12,298.16

Finding the Fourth Proportional to 21,063.24, 31,604.03 and 12,298.16

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Solution

The fourth proportional to 21,063.24, 31,604.03 and 12,298.16 is: 18,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.24 : 31,604.03 = 12,298.16 : x
  2. Step 2: Convert to fraction form
    21,063.24/31,604.03 = 12,298.16/x
  3. Step 3: Cross multiply
    21,063.24x = 31,604.03 × 12,298.16
  4. Step 4: Simplify right side
    21,063.24x = 388,671,198.07
  5. Step 5: Solve for x
    x = 388,671,198.07/21,063.24
  6. Step 6: Final answer
    x = 18,452.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.