Home / 28,722.47-43,057.41-12,083.68

Finding the Fourth Proportional to 28,722.47, 43,057.41 and 12,083.68

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Solution

The fourth proportional to 28,722.47, 43,057.41 and 12,083.68 is: 18,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.47 : 43,057.41 = 12,083.68 : x
  2. Step 2: Convert to fraction form
    28,722.47/43,057.41 = 12,083.68/x
  3. Step 3: Cross multiply
    28,722.47x = 43,057.41 × 12,083.68
  4. Step 4: Simplify right side
    28,722.47x = 520,291,972.58
  5. Step 5: Solve for x
    x = 520,291,972.58/28,722.47
  6. Step 6: Final answer
    x = 18,114.46

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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.