Home / 21,087.98-31,630.89-6,297.02

Finding the Fourth Proportional to 21,087.98, 31,630.89 and 6,297.02

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Solution

The fourth proportional to 21,087.98, 31,630.89 and 6,297.02 is: 9,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087.98 : 31,630.89 = 6,297.02 : x
  2. Step 2: Convert to fraction form
    21,087.98/31,630.89 = 6,297.02/x
  3. Step 3: Cross multiply
    21,087.98x = 31,630.89 × 6,297.02
  4. Step 4: Simplify right side
    21,087.98x = 199,180,346.95
  5. Step 5: Solve for x
    x = 199,180,346.95/21,087.98
  6. Step 6: Final answer
    x = 9,445.21

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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.