Home / 28,024.72-38,674.24-15,450.32

Finding the Fourth Proportional to 28,024.72, 38,674.24 and 15,450.32

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Solution

The fourth proportional to 28,024.72, 38,674.24 and 15,450.32 is: 21,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,024.72 : 38,674.24 = 15,450.32 : x
  2. Step 2: Convert to fraction form
    28,024.72/38,674.24 = 15,450.32/x
  3. Step 3: Cross multiply
    28,024.72x = 38,674.24 × 15,450.32
  4. Step 4: Simplify right side
    28,024.72x = 597,529,383.76
  5. Step 5: Solve for x
    x = 597,529,383.76/28,024.72
  6. Step 6: Final answer
    x = 21,321.51

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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.