Home / 30,893.65-42,606.41-20,134.37

Finding the Fourth Proportional to 30,893.65, 42,606.41 and 20,134.37

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Solution

The fourth proportional to 30,893.65, 42,606.41 and 20,134.37 is: 27,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,893.65 : 42,606.41 = 20,134.37 : x
  2. Step 2: Convert to fraction form
    30,893.65/42,606.41 = 20,134.37/x
  3. Step 3: Cross multiply
    30,893.65x = 42,606.41 × 20,134.37
  4. Step 4: Simplify right side
    30,893.65x = 857,853,229.16
  5. Step 5: Solve for x
    x = 857,853,229.16/30,893.65
  6. Step 6: Final answer
    x = 27,767.94

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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.