Home / 19,361.84-29,029.72-12,432.56

Finding the Fourth Proportional to 19,361.84, 29,029.72 and 12,432.56

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Solution

The fourth proportional to 19,361.84, 29,029.72 and 12,432.56 is: 18,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361.84 : 29,029.72 = 12,432.56 : x
  2. Step 2: Convert to fraction form
    19,361.84/29,029.72 = 12,432.56/x
  3. Step 3: Cross multiply
    19,361.84x = 29,029.72 × 12,432.56
  4. Step 4: Simplify right side
    19,361.84x = 360,913,735.68
  5. Step 5: Solve for x
    x = 360,913,735.68/19,361.84
  6. Step 6: Final answer
    x = 18,640.47

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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.