Home / 43,665.38-65,459.16-20,279.06

Finding the Fourth Proportional to 43,665.38, 65,459.16 and 20,279.06

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Solution

The fourth proportional to 43,665.38, 65,459.16 and 20,279.06 is: 30,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,665.38 : 65,459.16 = 20,279.06 : x
  2. Step 2: Convert to fraction form
    43,665.38/65,459.16 = 20,279.06/x
  3. Step 3: Cross multiply
    43,665.38x = 65,459.16 × 20,279.06
  4. Step 4: Simplify right side
    43,665.38x = 1,327,450,233.19
  5. Step 5: Solve for x
    x = 1,327,450,233.19/43,665.38
  6. Step 6: Final answer
    x = 30,400.52

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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.