Home / 38,100.88-57,186.40-19,394.28

Finding the Fourth Proportional to 38,100.88, 57,186.40 and 19,394.28

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Solution

The fourth proportional to 38,100.88, 57,186.40 and 19,394.28 is: 29,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,100.88 : 57,186.40 = 19,394.28 : x
  2. Step 2: Convert to fraction form
    38,100.88/57,186.40 = 19,394.28/x
  3. Step 3: Cross multiply
    38,100.88x = 57,186.40 × 19,394.28
  4. Step 4: Simplify right side
    38,100.88x = 1,109,089,053.79
  5. Step 5: Solve for x
    x = 1,109,089,053.79/38,100.88
  6. Step 6: Final answer
    x = 29,109.28

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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.