Home / 31,816.19-43,928.30-19,884.89

Finding the Fourth Proportional to 31,816.19, 43,928.30 and 19,884.89

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Solution

The fourth proportional to 31,816.19, 43,928.30 and 19,884.89 is: 27,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.19 : 43,928.30 = 19,884.89 : x
  2. Step 2: Convert to fraction form
    31,816.19/43,928.30 = 19,884.89/x
  3. Step 3: Cross multiply
    31,816.19x = 43,928.30 × 19,884.89
  4. Step 4: Simplify right side
    31,816.19x = 873,509,243.46
  5. Step 5: Solve for x
    x = 873,509,243.46/31,816.19
  6. Step 6: Final answer
    x = 27,454.87

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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.