Home / 28,173.12-42,256.32-7,398.24

Finding the Fourth Proportional to 28,173.12, 42,256.32 and 7,398.24

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Solution

The fourth proportional to 28,173.12, 42,256.32 and 7,398.24 is: 11,096.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.12 : 42,256.32 = 7,398.24 : x
  2. Step 2: Convert to fraction form
    28,173.12/42,256.32 = 7,398.24/x
  3. Step 3: Cross multiply
    28,173.12x = 42,256.32 × 7,398.24
  4. Step 4: Simplify right side
    28,173.12x = 312,622,396.88
  5. Step 5: Solve for x
    x = 312,622,396.88/28,173.12
  6. Step 6: Final answer
    x = 11,096.48

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1.5x scale

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.