Home / 39,782.78-59,594.23-18,405.53

Finding the Fourth Proportional to 39,782.78, 59,594.23 and 18,405.53

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Solution

The fourth proportional to 39,782.78, 59,594.23 and 18,405.53 is: 27,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782.78 : 59,594.23 = 18,405.53 : x
  2. Step 2: Convert to fraction form
    39,782.78/59,594.23 = 18,405.53/x
  3. Step 3: Cross multiply
    39,782.78x = 59,594.23 × 18,405.53
  4. Step 4: Simplify right side
    39,782.78x = 1,096,863,388.09
  5. Step 5: Solve for x
    x = 1,096,863,388.09/39,782.78
  6. Step 6: Final answer
    x = 27,571.31

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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.