Home / 28,237.96-38,968.26-16,138.24

Finding the Fourth Proportional to 28,237.96, 38,968.26 and 16,138.24

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Solution

The fourth proportional to 28,237.96, 38,968.26 and 16,138.24 is: 22,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.96 : 38,968.26 = 16,138.24 : x
  2. Step 2: Convert to fraction form
    28,237.96/38,968.26 = 16,138.24/x
  3. Step 3: Cross multiply
    28,237.96x = 38,968.26 × 16,138.24
  4. Step 4: Simplify right side
    28,237.96x = 628,879,132.26
  5. Step 5: Solve for x
    x = 628,879,132.26/28,237.96
  6. Step 6: Final answer
    x = 22,270.70

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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.