Home / 19,930.24-29,862.42-8,820.28

Finding the Fourth Proportional to 19,930.24, 29,862.42 and 8,820.28

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Solution

The fourth proportional to 19,930.24, 29,862.42 and 8,820.28 is: 13,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.24 : 29,862.42 = 8,820.28 : x
  2. Step 2: Convert to fraction form
    19,930.24/29,862.42 = 8,820.28/x
  3. Step 3: Cross multiply
    19,930.24x = 29,862.42 × 8,820.28
  4. Step 4: Simplify right side
    19,930.24x = 263,394,905.88
  5. Step 5: Solve for x
    x = 263,394,905.88/19,930.24
  6. Step 6: Final answer
    x = 13,215.84

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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.