Home / 38,112.31-57,203.56-19,405.72

Finding the Fourth Proportional to 38,112.31, 57,203.56 and 19,405.72

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Solution

The fourth proportional to 38,112.31, 57,203.56 and 19,405.72 is: 29,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.31 : 57,203.56 = 19,405.72 : x
  2. Step 2: Convert to fraction form
    38,112.31/57,203.56 = 19,405.72/x
  3. Step 3: Cross multiply
    38,112.31x = 57,203.56 × 19,405.72
  4. Step 4: Simplify right side
    38,112.31x = 1,110,076,268.36
  5. Step 5: Solve for x
    x = 1,110,076,268.36/38,112.31
  6. Step 6: Final answer
    x = 29,126.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.