Home / 27,291.78-37,673.22-18,364.74

Finding the Fourth Proportional to 27,291.78, 37,673.22 and 18,364.74

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Solution

The fourth proportional to 27,291.78, 37,673.22 and 18,364.74 is: 25,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,291.78 : 37,673.22 = 18,364.74 : x
  2. Step 2: Convert to fraction form
    27,291.78/37,673.22 = 18,364.74/x
  3. Step 3: Cross multiply
    27,291.78x = 37,673.22 × 18,364.74
  4. Step 4: Simplify right side
    27,291.78x = 691,858,890.26
  5. Step 5: Solve for x
    x = 691,858,890.26/27,291.78
  6. Step 6: Final answer
    x = 25,350.45

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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.