Home / 43,465.74-65,231.28-20,108.58

Finding the Fourth Proportional to 43,465.74, 65,231.28 and 20,108.58

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Solution

The fourth proportional to 43,465.74, 65,231.28 and 20,108.58 is: 30,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,465.74 : 65,231.28 = 20,108.58 : x
  2. Step 2: Convert to fraction form
    43,465.74/65,231.28 = 20,108.58/x
  3. Step 3: Cross multiply
    43,465.74x = 65,231.28 × 20,108.58
  4. Step 4: Simplify right side
    43,465.74x = 1,311,708,412.38
  5. Step 5: Solve for x
    x = 1,311,708,412.38/43,465.74
  6. Step 6: Final answer
    x = 30,177.98

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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.