Home / 21,579.38-32,381.66-9,098.64

Finding the Fourth Proportional to 21,579.38, 32,381.66 and 9,098.64

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Solution

The fourth proportional to 21,579.38, 32,381.66 and 9,098.64 is: 13,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.38 : 32,381.66 = 9,098.64 : x
  2. Step 2: Convert to fraction form
    21,579.38/32,381.66 = 9,098.64/x
  3. Step 3: Cross multiply
    21,579.38x = 32,381.66 × 9,098.64
  4. Step 4: Simplify right side
    21,579.38x = 294,629,066.94
  5. Step 5: Solve for x
    x = 294,629,066.94/21,579.38
  6. Step 6: Final answer
    x = 13,653.27

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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.