Home / 43,872.42-65,784.33-20,486.10

Finding the Fourth Proportional to 43,872.42, 65,784.33 and 20,486.10

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Solution

The fourth proportional to 43,872.42, 65,784.33 and 20,486.10 is: 30,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,872.42 : 65,784.33 = 20,486.10 : x
  2. Step 2: Convert to fraction form
    43,872.42/65,784.33 = 20,486.10/x
  3. Step 3: Cross multiply
    43,872.42x = 65,784.33 × 20,486.10
  4. Step 4: Simplify right side
    43,872.42x = 1,347,664,362.81
  5. Step 5: Solve for x
    x = 1,347,664,362.81/43,872.42
  6. Step 6: Final answer
    x = 30,717.80

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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.