Home / 21,025.75-31,538.63-8,552.56

Finding the Fourth Proportional to 21,025.75, 31,538.63 and 8,552.56

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Solution

The fourth proportional to 21,025.75, 31,538.63 and 8,552.56 is: 12,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.75 : 31,538.63 = 8,552.56 : x
  2. Step 2: Convert to fraction form
    21,025.75/31,538.63 = 8,552.56/x
  3. Step 3: Cross multiply
    21,025.75x = 31,538.63 × 8,552.56
  4. Step 4: Simplify right side
    21,025.75x = 269,736,025.39
  5. Step 5: Solve for x
    x = 269,736,025.39/21,025.75
  6. Step 6: Final answer
    x = 12,828.84

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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.