Home / 19,191.70-28,790.63-8,100.03

Finding the Fourth Proportional to 19,191.70, 28,790.63 and 8,100.03

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Solution

The fourth proportional to 19,191.70, 28,790.63 and 8,100.03 is: 12,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.70 : 28,790.63 = 8,100.03 : x
  2. Step 2: Convert to fraction form
    19,191.70/28,790.63 = 8,100.03/x
  3. Step 3: Cross multiply
    19,191.70x = 28,790.63 × 8,100.03
  4. Step 4: Simplify right side
    19,191.70x = 233,204,926.22
  5. Step 5: Solve for x
    x = 233,204,926.22/19,191.70
  6. Step 6: Final answer
    x = 12,151.35

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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.