Home / 21,021.23-31,531.70-6,230.22

Finding the Fourth Proportional to 21,021.23, 31,531.70 and 6,230.22

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Solution

The fourth proportional to 21,021.23, 31,531.70 and 6,230.22 is: 9,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.23 : 31,531.70 = 6,230.22 : x
  2. Step 2: Convert to fraction form
    21,021.23/31,531.70 = 6,230.22/x
  3. Step 3: Cross multiply
    21,021.23x = 31,531.70 × 6,230.22
  4. Step 4: Simplify right side
    21,021.23x = 196,449,396.82
  5. Step 5: Solve for x
    x = 196,449,396.82/21,021.23
  6. Step 6: Final answer
    x = 9,345.29

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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.