Home / 19,348.09-29,015.12-8,255.95

Finding the Fourth Proportional to 19,348.09, 29,015.12 and 8,255.95

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Solution

The fourth proportional to 19,348.09, 29,015.12 and 8,255.95 is: 12,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.09 : 29,015.12 = 8,255.95 : x
  2. Step 2: Convert to fraction form
    19,348.09/29,015.12 = 8,255.95/x
  3. Step 3: Cross multiply
    19,348.09x = 29,015.12 × 8,255.95
  4. Step 4: Simplify right side
    19,348.09x = 239,547,338.68
  5. Step 5: Solve for x
    x = 239,547,338.68/19,348.09
  6. Step 6: Final answer
    x = 12,380.93

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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.