Home / 19,171.35-28,751.36-8,635.28

Finding the Fourth Proportional to 19,171.35, 28,751.36 and 8,635.28

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Solution

The fourth proportional to 19,171.35, 28,751.36 and 8,635.28 is: 12,950.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.35 : 28,751.36 = 8,635.28 : x
  2. Step 2: Convert to fraction form
    19,171.35/28,751.36 = 8,635.28/x
  3. Step 3: Cross multiply
    19,171.35x = 28,751.36 × 8,635.28
  4. Step 4: Simplify right side
    19,171.35x = 248,275,857.05
  5. Step 5: Solve for x
    x = 248,275,857.05/19,171.35
  6. Step 6: Final answer
    x = 12,950.36

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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.