Home / 19,899.85-29,850.69-18,942.28

Finding the Fourth Proportional to 19,899.85, 29,850.69 and 18,942.28

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Solution

The fourth proportional to 19,899.85, 29,850.69 and 18,942.28 is: 28,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.85 : 29,850.69 = 18,942.28 : x
  2. Step 2: Convert to fraction form
    19,899.85/29,850.69 = 18,942.28/x
  3. Step 3: Cross multiply
    19,899.85x = 29,850.69 × 18,942.28
  4. Step 4: Simplify right side
    19,899.85x = 565,440,128.17
  5. Step 5: Solve for x
    x = 565,440,128.17/19,899.85
  6. Step 6: Final answer
    x = 28,414.29

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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.