Home / 30,308.74-41,825.48-20,748.39

Finding the Fourth Proportional to 30,308.74, 41,825.48 and 20,748.39

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Solution

The fourth proportional to 30,308.74, 41,825.48 and 20,748.39 is: 28,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.74 : 41,825.48 = 20,748.39 : x
  2. Step 2: Convert to fraction form
    30,308.74/41,825.48 = 20,748.39/x
  3. Step 3: Cross multiply
    30,308.74x = 41,825.48 × 20,748.39
  4. Step 4: Simplify right side
    30,308.74x = 867,811,481.18
  5. Step 5: Solve for x
    x = 867,811,481.18/30,308.74
  6. Step 6: Final answer
    x = 28,632.38

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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.