Home / 19,081.47-28,621.69-8,548.63

Finding the Fourth Proportional to 19,081.47, 28,621.69 and 8,548.63

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Solution

The fourth proportional to 19,081.47, 28,621.69 and 8,548.63 is: 12,822.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.47 : 28,621.69 = 8,548.63 : x
  2. Step 2: Convert to fraction form
    19,081.47/28,621.69 = 8,548.63/x
  3. Step 3: Cross multiply
    19,081.47x = 28,621.69 × 8,548.63
  4. Step 4: Simplify right side
    19,081.47x = 244,676,237.78
  5. Step 5: Solve for x
    x = 244,676,237.78/19,081.47
  6. Step 6: Final answer
    x = 12,822.71

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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.