Home / 21,615.63-32,427.27-9,930.03

Finding the Fourth Proportional to 21,615.63, 32,427.27 and 9,930.03

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Solution

The fourth proportional to 21,615.63, 32,427.27 and 9,930.03 is: 14,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.63 : 32,427.27 = 9,930.03 : x
  2. Step 2: Convert to fraction form
    21,615.63/32,427.27 = 9,930.03/x
  3. Step 3: Cross multiply
    21,615.63x = 32,427.27 × 9,930.03
  4. Step 4: Simplify right side
    21,615.63x = 322,003,763.92
  5. Step 5: Solve for x
    x = 322,003,763.92/21,615.63
  6. Step 6: Final answer
    x = 14,896.80

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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.