Home / 30,135.20-45,169.96-25,739.32

Finding the Fourth Proportional to 30,135.20, 45,169.96 and 25,739.32

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Solution

The fourth proportional to 30,135.20, 45,169.96 and 25,739.32 is: 38,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.20 : 45,169.96 = 25,739.32 : x
  2. Step 2: Convert to fraction form
    30,135.20/45,169.96 = 25,739.32/x
  3. Step 3: Cross multiply
    30,135.20x = 45,169.96 × 25,739.32
  4. Step 4: Simplify right side
    30,135.20x = 1,162,644,054.83
  5. Step 5: Solve for x
    x = 1,162,644,054.83/30,135.20
  6. Step 6: Final answer
    x = 38,580.93

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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.