Home / 19,977.36-29,967.72-6,830.64

Finding the Fourth Proportional to 19,977.36, 29,967.72 and 6,830.64

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Solution

The fourth proportional to 19,977.36, 29,967.72 and 6,830.64 is: 10,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.36 : 29,967.72 = 6,830.64 : x
  2. Step 2: Convert to fraction form
    19,977.36/29,967.72 = 6,830.64/x
  3. Step 3: Cross multiply
    19,977.36x = 29,967.72 × 6,830.64
  4. Step 4: Simplify right side
    19,977.36x = 204,698,706.94
  5. Step 5: Solve for x
    x = 204,698,706.94/19,977.36
  6. Step 6: Final answer
    x = 10,246.53

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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.