Home / 21,907.10-30,234.94-12,476.54

Finding the Fourth Proportional to 21,907.10, 30,234.94 and 12,476.54

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Solution

The fourth proportional to 21,907.10, 30,234.94 and 12,476.54 is: 17,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907.10 : 30,234.94 = 12,476.54 : x
  2. Step 2: Convert to fraction form
    21,907.10/30,234.94 = 12,476.54/x
  3. Step 3: Cross multiply
    21,907.10x = 30,234.94 × 12,476.54
  4. Step 4: Simplify right side
    21,907.10x = 377,227,438.31
  5. Step 5: Solve for x
    x = 377,227,438.31/21,907.10
  6. Step 6: Final answer
    x = 17,219.41

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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.