Home / 19,290.56-28,940.29-8,197.61

Finding the Fourth Proportional to 19,290.56, 28,940.29 and 8,197.61

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Solution

The fourth proportional to 19,290.56, 28,940.29 and 8,197.61 is: 12,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.56 : 28,940.29 = 8,197.61 : x
  2. Step 2: Convert to fraction form
    19,290.56/28,940.29 = 8,197.61/x
  3. Step 3: Cross multiply
    19,290.56x = 28,940.29 × 8,197.61
  4. Step 4: Simplify right side
    19,290.56x = 237,241,045.51
  5. Step 5: Solve for x
    x = 237,241,045.51/19,290.56
  6. Step 6: Final answer
    x = 12,298.30

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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.