Home / 35,893.31-49,534.40-19,978.79

Finding the Fourth Proportional to 35,893.31, 49,534.40 and 19,978.79

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Solution

The fourth proportional to 35,893.31, 49,534.40 and 19,978.79 is: 27,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,893.31 : 49,534.40 = 19,978.79 : x
  2. Step 2: Convert to fraction form
    35,893.31/49,534.40 = 19,978.79/x
  3. Step 3: Cross multiply
    35,893.31x = 49,534.40 × 19,978.79
  4. Step 4: Simplify right side
    35,893.31x = 989,637,177.65
  5. Step 5: Solve for x
    x = 989,637,177.65/35,893.31
  6. Step 6: Final answer
    x = 27,571.63

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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.