Home / 21,170.44-31,749.16-14,638.60

Finding the Fourth Proportional to 21,170.44, 31,749.16 and 14,638.60

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Solution

The fourth proportional to 21,170.44, 31,749.16 and 14,638.60 is: 21,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170.44 : 31,749.16 = 14,638.60 : x
  2. Step 2: Convert to fraction form
    21,170.44/31,749.16 = 14,638.60/x
  3. Step 3: Cross multiply
    21,170.44x = 31,749.16 × 14,638.60
  4. Step 4: Simplify right side
    21,170.44x = 464,763,253.58
  5. Step 5: Solve for x
    x = 464,763,253.58/21,170.44
  6. Step 6: Final answer
    x = 21,953.41

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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.