Home / 20,308.54-30,388.95-16,765.60

Finding the Fourth Proportional to 20,308.54, 30,388.95 and 16,765.60

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Solution

The fourth proportional to 20,308.54, 30,388.95 and 16,765.60 is: 25,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.54 : 30,388.95 = 16,765.60 : x
  2. Step 2: Convert to fraction form
    20,308.54/30,388.95 = 16,765.60/x
  3. Step 3: Cross multiply
    20,308.54x = 30,388.95 × 16,765.60
  4. Step 4: Simplify right side
    20,308.54x = 509,488,980.12
  5. Step 5: Solve for x
    x = 509,488,980.12/20,308.54
  6. Step 6: Final answer
    x = 25,087.43

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1.5x scale

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.