Home / 19,919.88-29,872.72-6,590.44

Finding the Fourth Proportional to 19,919.88, 29,872.72 and 6,590.44

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Solution

The fourth proportional to 19,919.88, 29,872.72 and 6,590.44 is: 9,883.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.88 : 29,872.72 = 6,590.44 : x
  2. Step 2: Convert to fraction form
    19,919.88/29,872.72 = 6,590.44/x
  3. Step 3: Cross multiply
    19,919.88x = 29,872.72 × 6,590.44
  4. Step 4: Simplify right side
    19,919.88x = 196,874,368.80
  5. Step 5: Solve for x
    x = 196,874,368.80/19,919.88
  6. Step 6: Final answer
    x = 9,883.31

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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.