Home / 21,021.88-31,539.48-6,230.86

Finding the Fourth Proportional to 21,021.88, 31,539.48 and 6,230.86

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Solution

The fourth proportional to 21,021.88, 31,539.48 and 6,230.86 is: 9,348.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.88 : 31,539.48 = 6,230.86 : x
  2. Step 2: Convert to fraction form
    21,021.88/31,539.48 = 6,230.86/x
  3. Step 3: Cross multiply
    21,021.88x = 31,539.48 × 6,230.86
  4. Step 4: Simplify right side
    21,021.88x = 196,518,084.35
  5. Step 5: Solve for x
    x = 196,518,084.35/21,021.88
  6. Step 6: Final answer
    x = 9,348.26

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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.