Home / 21,629.31-32,448.77-6,638.52

Finding the Fourth Proportional to 21,629.31, 32,448.77 and 6,638.52

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Solution

The fourth proportional to 21,629.31, 32,448.77 and 6,638.52 is: 9,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.31 : 32,448.77 = 6,638.52 : x
  2. Step 2: Convert to fraction form
    21,629.31/32,448.77 = 6,638.52/x
  3. Step 3: Cross multiply
    21,629.31x = 32,448.77 × 6,638.52
  4. Step 4: Simplify right side
    21,629.31x = 215,411,808.62
  5. Step 5: Solve for x
    x = 215,411,808.62/21,629.31
  6. Step 6: Final answer
    x = 9,959.25

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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.