Home / 21,308.22-31,962.33-7,453.98

Finding the Fourth Proportional to 21,308.22, 31,962.33 and 7,453.98

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Solution

The fourth proportional to 21,308.22, 31,962.33 and 7,453.98 is: 11,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.22 : 31,962.33 = 7,453.98 : x
  2. Step 2: Convert to fraction form
    21,308.22/31,962.33 = 7,453.98/x
  3. Step 3: Cross multiply
    21,308.22x = 31,962.33 × 7,453.98
  4. Step 4: Simplify right side
    21,308.22x = 238,246,568.57
  5. Step 5: Solve for x
    x = 238,246,568.57/21,308.22
  6. Step 6: Final answer
    x = 11,180.97

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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.