Home / 21,898.15-30,219.67-12,467.32

Finding the Fourth Proportional to 21,898.15, 30,219.67 and 12,467.32

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Solution

The fourth proportional to 21,898.15, 30,219.67 and 12,467.32 is: 17,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.15 : 30,219.67 = 12,467.32 : x
  2. Step 2: Convert to fraction form
    21,898.15/30,219.67 = 12,467.32/x
  3. Step 3: Cross multiply
    21,898.15x = 30,219.67 × 12,467.32
  4. Step 4: Simplify right side
    21,898.15x = 376,758,145.09
  5. Step 5: Solve for x
    x = 376,758,145.09/21,898.15
  6. Step 6: Final answer
    x = 17,205.03

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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.