Home / 19,538.96-29,330.28-12,977.96

Finding the Fourth Proportional to 19,538.96, 29,330.28 and 12,977.96

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Solution

The fourth proportional to 19,538.96, 29,330.28 and 12,977.96 is: 19,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.96 : 29,330.28 = 12,977.96 : x
  2. Step 2: Convert to fraction form
    19,538.96/29,330.28 = 12,977.96/x
  3. Step 3: Cross multiply
    19,538.96x = 29,330.28 × 12,977.96
  4. Step 4: Simplify right side
    19,538.96x = 380,647,053.98
  5. Step 5: Solve for x
    x = 380,647,053.98/19,538.96
  6. Step 6: Final answer
    x = 19,481.44

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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.