Home / 28,782.02-43,161.69-13,986.56

Finding the Fourth Proportional to 28,782.02, 43,161.69 and 13,986.56

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Solution

The fourth proportional to 28,782.02, 43,161.69 and 13,986.56 is: 20,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.02 : 43,161.69 = 13,986.56 : x
  2. Step 2: Convert to fraction form
    28,782.02/43,161.69 = 13,986.56/x
  3. Step 3: Cross multiply
    28,782.02x = 43,161.69 × 13,986.56
  4. Step 4: Simplify right side
    28,782.02x = 603,683,566.89
  5. Step 5: Solve for x
    x = 603,683,566.89/28,782.02
  6. Step 6: Final answer
    x = 20,974.33

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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.