Home / 21,004.98-31,508.91-6,964.44

Finding the Fourth Proportional to 21,004.98, 31,508.91 and 6,964.44

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Solution

The fourth proportional to 21,004.98, 31,508.91 and 6,964.44 is: 10,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.98 : 31,508.91 = 6,964.44 : x
  2. Step 2: Convert to fraction form
    21,004.98/31,508.91 = 6,964.44/x
  3. Step 3: Cross multiply
    21,004.98x = 31,508.91 × 6,964.44
  4. Step 4: Simplify right side
    21,004.98x = 219,441,913.16
  5. Step 5: Solve for x
    x = 219,441,913.16/21,004.98
  6. Step 6: Final answer
    x = 10,447.14

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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.