Home / 19,028.80-28,566.60-12,008.80

Finding the Fourth Proportional to 19,028.80, 28,566.60 and 12,008.80

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Solution

The fourth proportional to 19,028.80, 28,566.60 and 12,008.80 is: 18,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,028.80 : 28,566.60 = 12,008.80 : x
  2. Step 2: Convert to fraction form
    19,028.80/28,566.60 = 12,008.80/x
  3. Step 3: Cross multiply
    19,028.80x = 28,566.60 × 12,008.80
  4. Step 4: Simplify right side
    19,028.80x = 343,050,586.08
  5. Step 5: Solve for x
    x = 343,050,586.08/19,028.80
  6. Step 6: Final answer
    x = 18,027.97

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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.