Home / 35,767.78-53,639.52-12,388.75

Finding the Fourth Proportional to 35,767.78, 53,639.52 and 12,388.75

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Solution

The fourth proportional to 35,767.78, 53,639.52 and 12,388.75 is: 18,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,767.78 : 53,639.52 = 12,388.75 : x
  2. Step 2: Convert to fraction form
    35,767.78/53,639.52 = 12,388.75/x
  3. Step 3: Cross multiply
    35,767.78x = 53,639.52 × 12,388.75
  4. Step 4: Simplify right side
    35,767.78x = 664,526,603.40
  5. Step 5: Solve for x
    x = 664,526,603.40/35,767.78
  6. Step 6: Final answer
    x = 18,578.92

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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.