Home / 38,443.77-57,667.39-11,787.81

Finding the Fourth Proportional to 38,443.77, 57,667.39 and 11,787.81

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Solution

The fourth proportional to 38,443.77, 57,667.39 and 11,787.81 is: 17,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.77 : 57,667.39 = 11,787.81 : x
  2. Step 2: Convert to fraction form
    38,443.77/57,667.39 = 11,787.81/x
  3. Step 3: Cross multiply
    38,443.77x = 57,667.39 × 11,787.81
  4. Step 4: Simplify right side
    38,443.77x = 679,772,467.50
  5. Step 5: Solve for x
    x = 679,772,467.50/38,443.77
  6. Step 6: Final answer
    x = 17,682.25

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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.