Home / 28,141.86-39,013.36-26,643.78

Finding the Fourth Proportional to 28,141.86, 39,013.36 and 26,643.78

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Solution

The fourth proportional to 28,141.86, 39,013.36 and 26,643.78 is: 36,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.86 : 39,013.36 = 26,643.78 : x
  2. Step 2: Convert to fraction form
    28,141.86/39,013.36 = 26,643.78/x
  3. Step 3: Cross multiply
    28,141.86x = 39,013.36 × 26,643.78
  4. Step 4: Simplify right side
    28,141.86x = 1,039,463,380.90
  5. Step 5: Solve for x
    x = 1,039,463,380.90/28,141.86
  6. Step 6: Final answer
    x = 36,936.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.