Home / 30,379.56-45,642.42-28,701.24

Finding the Fourth Proportional to 30,379.56, 45,642.42 and 28,701.24

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Solution

The fourth proportional to 30,379.56, 45,642.42 and 28,701.24 is: 43,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.56 : 45,642.42 = 28,701.24 : x
  2. Step 2: Convert to fraction form
    30,379.56/45,642.42 = 28,701.24/x
  3. Step 3: Cross multiply
    30,379.56x = 45,642.42 × 28,701.24
  4. Step 4: Simplify right side
    30,379.56x = 1,309,994,050.60
  5. Step 5: Solve for x
    x = 1,309,994,050.60/30,379.56
  6. Step 6: Final answer
    x = 43,120.90

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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.