Home / 21,245.88-31,868.94-5,663.46

Finding the Fourth Proportional to 21,245.88, 31,868.94 and 5,663.46

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Solution

The fourth proportional to 21,245.88, 31,868.94 and 5,663.46 is: 8,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.88 : 31,868.94 = 5,663.46 : x
  2. Step 2: Convert to fraction form
    21,245.88/31,868.94 = 5,663.46/x
  3. Step 3: Cross multiply
    21,245.88x = 31,868.94 × 5,663.46
  4. Step 4: Simplify right side
    21,245.88x = 180,488,466.93
  5. Step 5: Solve for x
    x = 180,488,466.93/21,245.88
  6. Step 6: Final answer
    x = 8,495.22

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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.