Home / 21,820.17-32,730.26-7,029.36

Finding the Fourth Proportional to 21,820.17, 32,730.26 and 7,029.36

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Solution

The fourth proportional to 21,820.17, 32,730.26 and 7,029.36 is: 10,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820.17 : 32,730.26 = 7,029.36 : x
  2. Step 2: Convert to fraction form
    21,820.17/32,730.26 = 7,029.36/x
  3. Step 3: Cross multiply
    21,820.17x = 32,730.26 × 7,029.36
  4. Step 4: Simplify right side
    21,820.17x = 230,072,745.29
  5. Step 5: Solve for x
    x = 230,072,745.29/21,820.17
  6. Step 6: Final answer
    x = 10,544.04

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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.