Home / 22,049.93-30,429.46-11,978.37

Finding the Fourth Proportional to 22,049.93, 30,429.46 and 11,978.37

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Solution

The fourth proportional to 22,049.93, 30,429.46 and 11,978.37 is: 16,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,049.93 : 30,429.46 = 11,978.37 : x
  2. Step 2: Convert to fraction form
    22,049.93/30,429.46 = 11,978.37/x
  3. Step 3: Cross multiply
    22,049.93x = 30,429.46 × 11,978.37
  4. Step 4: Simplify right side
    22,049.93x = 364,495,330.78
  5. Step 5: Solve for x
    x = 364,495,330.78/22,049.93
  6. Step 6: Final answer
    x = 16,530.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.