Home / 21,538.73-32,308.11-9,843.75

Finding the Fourth Proportional to 21,538.73, 32,308.11 and 9,843.75

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Solution

The fourth proportional to 21,538.73, 32,308.11 and 9,843.75 is: 14,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.73 : 32,308.11 = 9,843.75 : x
  2. Step 2: Convert to fraction form
    21,538.73/32,308.11 = 9,843.75/x
  3. Step 3: Cross multiply
    21,538.73x = 32,308.11 × 9,843.75
  4. Step 4: Simplify right side
    21,538.73x = 318,032,957.81
  5. Step 5: Solve for x
    x = 318,032,957.81/21,538.73
  6. Step 6: Final answer
    x = 14,765.63

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1.5x scale

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.