Home / 21,283.88-31,927.32-6,290.82

Finding the Fourth Proportional to 21,283.88, 31,927.32 and 6,290.82

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Solution

The fourth proportional to 21,283.88, 31,927.32 and 6,290.82 is: 9,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.88 : 31,927.32 = 6,290.82 : x
  2. Step 2: Convert to fraction form
    21,283.88/31,927.32 = 6,290.82/x
  3. Step 3: Cross multiply
    21,283.88x = 31,927.32 × 6,290.82
  4. Step 4: Simplify right side
    21,283.88x = 200,849,023.20
  5. Step 5: Solve for x
    x = 200,849,023.20/21,283.88
  6. Step 6: Final answer
    x = 9,436.67

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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.