Home / 21,063.39-31,586.32-8,574.94

Finding the Fourth Proportional to 21,063.39, 31,586.32 and 8,574.94

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Solution

The fourth proportional to 21,063.39, 31,586.32 and 8,574.94 is: 12,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.39 : 31,586.32 = 8,574.94 : x
  2. Step 2: Convert to fraction form
    21,063.39/31,586.32 = 8,574.94/x
  3. Step 3: Cross multiply
    21,063.39x = 31,586.32 × 8,574.94
  4. Step 4: Simplify right side
    21,063.39x = 270,850,724.01
  5. Step 5: Solve for x
    x = 270,850,724.01/21,063.39
  6. Step 6: Final answer
    x = 12,858.84

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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.