Home / 28,219.42-38,942.73-15,644.26

Finding the Fourth Proportional to 28,219.42, 38,942.73 and 15,644.26

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Solution

The fourth proportional to 28,219.42, 38,942.73 and 15,644.26 is: 21,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.42 : 38,942.73 = 15,644.26 : x
  2. Step 2: Convert to fraction form
    28,219.42/38,942.73 = 15,644.26/x
  3. Step 3: Cross multiply
    28,219.42x = 38,942.73 × 15,644.26
  4. Step 4: Simplify right side
    28,219.42x = 609,230,193.23
  5. Step 5: Solve for x
    x = 609,230,193.23/28,219.42
  6. Step 6: Final answer
    x = 21,589.04

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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.