Home / 19,063.28-28,604.79-12,742.58

Finding the Fourth Proportional to 19,063.28, 28,604.79 and 12,742.58

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Solution

The fourth proportional to 19,063.28, 28,604.79 and 12,742.58 is: 19,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063.28 : 28,604.79 = 12,742.58 : x
  2. Step 2: Convert to fraction form
    19,063.28/28,604.79 = 12,742.58/x
  3. Step 3: Cross multiply
    19,063.28x = 28,604.79 × 12,742.58
  4. Step 4: Simplify right side
    19,063.28x = 364,498,681.93
  5. Step 5: Solve for x
    x = 364,498,681.93/19,063.28
  6. Step 6: Final answer
    x = 19,120.46

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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.