Home / 31,835.39-43,933.10-19,905.64

Finding the Fourth Proportional to 31,835.39, 43,933.10 and 19,905.64

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Solution

The fourth proportional to 31,835.39, 43,933.10 and 19,905.64 is: 27,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835.39 : 43,933.10 = 19,905.64 : x
  2. Step 2: Convert to fraction form
    31,835.39/43,933.10 = 19,905.64/x
  3. Step 3: Cross multiply
    31,835.39x = 43,933.10 × 19,905.64
  4. Step 4: Simplify right side
    31,835.39x = 874,516,557.63
  5. Step 5: Solve for x
    x = 874,516,557.63/31,835.39
  6. Step 6: Final answer
    x = 27,469.95

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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.