Home / 19,720.06-29,584.80-6,393.06

Finding the Fourth Proportional to 19,720.06, 29,584.80 and 6,393.06

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Solution

The fourth proportional to 19,720.06, 29,584.80 and 6,393.06 is: 9,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.06 : 29,584.80 = 6,393.06 : x
  2. Step 2: Convert to fraction form
    19,720.06/29,584.80 = 6,393.06/x
  3. Step 3: Cross multiply
    19,720.06x = 29,584.80 × 6,393.06
  4. Step 4: Simplify right side
    19,720.06x = 189,137,401.49
  5. Step 5: Solve for x
    x = 189,137,401.49/19,720.06
  6. Step 6: Final answer
    x = 9,591.12

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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.