Home / 27,828.72-38,406.41-15,893.86

Finding the Fourth Proportional to 27,828.72, 38,406.41 and 15,893.86

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Solution

The fourth proportional to 27,828.72, 38,406.41 and 15,893.86 is: 21,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.72 : 38,406.41 = 15,893.86 : x
  2. Step 2: Convert to fraction form
    27,828.72/38,406.41 = 15,893.86/x
  3. Step 3: Cross multiply
    27,828.72x = 38,406.41 × 15,893.86
  4. Step 4: Simplify right side
    27,828.72x = 610,425,928.16
  5. Step 5: Solve for x
    x = 610,425,928.16/27,828.72
  6. Step 6: Final answer
    x = 21,935.11

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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.