Home / 38,109.60-57,166.56-11,818.08

Finding the Fourth Proportional to 38,109.60, 57,166.56 and 11,818.08

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Solution

The fourth proportional to 38,109.60, 57,166.56 and 11,818.08 is: 17,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.60 : 57,166.56 = 11,818.08 : x
  2. Step 2: Convert to fraction form
    38,109.60/57,166.56 = 11,818.08/x
  3. Step 3: Cross multiply
    38,109.60x = 57,166.56 × 11,818.08
  4. Step 4: Simplify right side
    38,109.60x = 675,598,979.40
  5. Step 5: Solve for x
    x = 675,598,979.40/38,109.60
  6. Step 6: Final answer
    x = 17,727.79

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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.