Home / 19,463.82-29,228.74-12,720.56

Finding the Fourth Proportional to 19,463.82, 29,228.74 and 12,720.56

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Solution

The fourth proportional to 19,463.82, 29,228.74 and 12,720.56 is: 19,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,463.82 : 29,228.74 = 12,720.56 : x
  2. Step 2: Convert to fraction form
    19,463.82/29,228.74 = 12,720.56/x
  3. Step 3: Cross multiply
    19,463.82x = 29,228.74 × 12,720.56
  4. Step 4: Simplify right side
    19,463.82x = 371,805,940.89
  5. Step 5: Solve for x
    x = 371,805,940.89/19,463.82
  6. Step 6: Final answer
    x = 19,102.41

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1.5x scale

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.