Home / 28,556.86-42,842.55-11,021.98

Finding the Fourth Proportional to 28,556.86, 42,842.55 and 11,021.98

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Solution

The fourth proportional to 28,556.86, 42,842.55 and 11,021.98 is: 16,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.86 : 42,842.55 = 11,021.98 : x
  2. Step 2: Convert to fraction form
    28,556.86/42,842.55 = 11,021.98/x
  3. Step 3: Cross multiply
    28,556.86x = 42,842.55 × 11,021.98
  4. Step 4: Simplify right side
    28,556.86x = 472,209,729.25
  5. Step 5: Solve for x
    x = 472,209,729.25/28,556.86
  6. Step 6: Final answer
    x = 16,535.77

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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.