Home / 20,559.54-30,839.30-11,775.68

Finding the Fourth Proportional to 20,559.54, 30,839.30 and 11,775.68

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Solution

The fourth proportional to 20,559.54, 30,839.30 and 11,775.68 is: 17,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.54 : 30,839.30 = 11,775.68 : x
  2. Step 2: Convert to fraction form
    20,559.54/30,839.30 = 11,775.68/x
  3. Step 3: Cross multiply
    20,559.54x = 30,839.30 × 11,775.68
  4. Step 4: Simplify right side
    20,559.54x = 363,153,728.22
  5. Step 5: Solve for x
    x = 363,153,728.22/20,559.54
  6. Step 6: Final answer
    x = 17,663.51

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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.