Home / 19,628.34-29,439.60-6,480.83

Finding the Fourth Proportional to 19,628.34, 29,439.60 and 6,480.83

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Solution

The fourth proportional to 19,628.34, 29,439.60 and 6,480.83 is: 9,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.34 : 29,439.60 = 6,480.83 : x
  2. Step 2: Convert to fraction form
    19,628.34/29,439.60 = 6,480.83/x
  3. Step 3: Cross multiply
    19,628.34x = 29,439.60 × 6,480.83
  4. Step 4: Simplify right side
    19,628.34x = 190,792,895.67
  5. Step 5: Solve for x
    x = 190,792,895.67/19,628.34
  6. Step 6: Final answer
    x = 9,720.28

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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.