Home / 21,416.25-32,125.99-6,626.66

Finding the Fourth Proportional to 21,416.25, 32,125.99 and 6,626.66

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Solution

The fourth proportional to 21,416.25, 32,125.99 and 6,626.66 is: 9,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.25 : 32,125.99 = 6,626.66 : x
  2. Step 2: Convert to fraction form
    21,416.25/32,125.99 = 6,626.66/x
  3. Step 3: Cross multiply
    21,416.25x = 32,125.99 × 6,626.66
  4. Step 4: Simplify right side
    21,416.25x = 212,888,012.89
  5. Step 5: Solve for x
    x = 212,888,012.89/21,416.25
  6. Step 6: Final answer
    x = 9,940.49

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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.