Home / 19,291.56-29,081.94-18,005.63

Finding the Fourth Proportional to 19,291.56, 29,081.94 and 18,005.63

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Solution

The fourth proportional to 19,291.56, 29,081.94 and 18,005.63 is: 27,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.56 : 29,081.94 = 18,005.63 : x
  2. Step 2: Convert to fraction form
    19,291.56/29,081.94 = 18,005.63/x
  3. Step 3: Cross multiply
    19,291.56x = 29,081.94 × 18,005.63
  4. Step 4: Simplify right side
    19,291.56x = 523,638,789.81
  5. Step 5: Solve for x
    x = 523,638,789.81/19,291.56
  6. Step 6: Final answer
    x = 27,143.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.