Home / 20,539.86-30,824.38-18,556.98

Finding the Fourth Proportional to 20,539.86, 30,824.38 and 18,556.98

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Solution

The fourth proportional to 20,539.86, 30,824.38 and 18,556.98 is: 27,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.86 : 30,824.38 = 18,556.98 : x
  2. Step 2: Convert to fraction form
    20,539.86/30,824.38 = 18,556.98/x
  3. Step 3: Cross multiply
    20,539.86x = 30,824.38 × 18,556.98
  4. Step 4: Simplify right side
    20,539.86x = 572,007,403.17
  5. Step 5: Solve for x
    x = 572,007,403.17/20,539.86
  6. Step 6: Final answer
    x = 27,848.65

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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.