Home / 21,851.26-32,809.61-12,501.82

Finding the Fourth Proportional to 21,851.26, 32,809.61 and 12,501.82

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Solution

The fourth proportional to 21,851.26, 32,809.61 and 12,501.82 is: 18,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.26 : 32,809.61 = 12,501.82 : x
  2. Step 2: Convert to fraction form
    21,851.26/32,809.61 = 12,501.82/x
  3. Step 3: Cross multiply
    21,851.26x = 32,809.61 × 12,501.82
  4. Step 4: Simplify right side
    21,851.26x = 410,179,775.98
  5. Step 5: Solve for x
    x = 410,179,775.98/21,851.26
  6. Step 6: Final answer
    x = 18,771.45

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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.