Home / 21,410.90-32,117.25-6,620.10

Finding the Fourth Proportional to 21,410.90, 32,117.25 and 6,620.10

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Solution

The fourth proportional to 21,410.90, 32,117.25 and 6,620.10 is: 9,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.90 : 32,117.25 = 6,620.10 : x
  2. Step 2: Convert to fraction form
    21,410.90/32,117.25 = 6,620.10/x
  3. Step 3: Cross multiply
    21,410.90x = 32,117.25 × 6,620.10
  4. Step 4: Simplify right side
    21,410.90x = 212,619,406.73
  5. Step 5: Solve for x
    x = 212,619,406.73/21,410.90
  6. Step 6: Final answer
    x = 9,930.43

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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.