Home / 21,419.37-32,135.40-6,629.36

Finding the Fourth Proportional to 21,419.37, 32,135.40 and 6,629.36

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Solution

The fourth proportional to 21,419.37, 32,135.40 and 6,629.36 is: 9,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.37 : 32,135.40 = 6,629.36 : x
  2. Step 2: Convert to fraction form
    21,419.37/32,135.40 = 6,629.36/x
  3. Step 3: Cross multiply
    21,419.37x = 32,135.40 × 6,629.36
  4. Step 4: Simplify right side
    21,419.37x = 213,036,974.67
  5. Step 5: Solve for x
    x = 213,036,974.67/21,419.37
  6. Step 6: Final answer
    x = 9,946.00

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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.