Home / 28,986.24-39,999.15-16,237.20

Finding the Fourth Proportional to 28,986.24, 39,999.15 and 16,237.20

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Solution

The fourth proportional to 28,986.24, 39,999.15 and 16,237.20 is: 22,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.24 : 39,999.15 = 16,237.20 : x
  2. Step 2: Convert to fraction form
    28,986.24/39,999.15 = 16,237.20/x
  3. Step 3: Cross multiply
    28,986.24x = 39,999.15 × 16,237.20
  4. Step 4: Simplify right side
    28,986.24x = 649,474,198.38
  5. Step 5: Solve for x
    x = 649,474,198.38/28,986.24
  6. Step 6: Final answer
    x = 22,406.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.