Home / 30,245.74-41,743.66-21,775.90

Finding the Fourth Proportional to 30,245.74, 41,743.66 and 21,775.90

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Solution

The fourth proportional to 30,245.74, 41,743.66 and 21,775.90 is: 30,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.74 : 41,743.66 = 21,775.90 : x
  2. Step 2: Convert to fraction form
    30,245.74/41,743.66 = 21,775.90/x
  3. Step 3: Cross multiply
    30,245.74x = 41,743.66 × 21,775.90
  4. Step 4: Simplify right side
    30,245.74x = 909,005,765.79
  5. Step 5: Solve for x
    x = 909,005,765.79/30,245.74
  6. Step 6: Final answer
    x = 30,054.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.