Home / 43,620.56-65,381.76-18,648.08

Finding the Fourth Proportional to 43,620.56, 65,381.76 and 18,648.08

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Solution

The fourth proportional to 43,620.56, 65,381.76 and 18,648.08 is: 27,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,620.56 : 65,381.76 = 18,648.08 : x
  2. Step 2: Convert to fraction form
    43,620.56/65,381.76 = 18,648.08/x
  3. Step 3: Cross multiply
    43,620.56x = 65,381.76 × 18,648.08
  4. Step 4: Simplify right side
    43,620.56x = 1,219,244,291.02
  5. Step 5: Solve for x
    x = 1,219,244,291.02/43,620.56
  6. Step 6: Final answer
    x = 27,951.14

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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.