Home / 20,933.14-28,887.99-11,501.50

Finding the Fourth Proportional to 20,933.14, 28,887.99 and 11,501.50

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Solution

The fourth proportional to 20,933.14, 28,887.99 and 11,501.50 is: 15,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.14 : 28,887.99 = 11,501.50 : x
  2. Step 2: Convert to fraction form
    20,933.14/28,887.99 = 11,501.50/x
  3. Step 3: Cross multiply
    20,933.14x = 28,887.99 × 11,501.50
  4. Step 4: Simplify right side
    20,933.14x = 332,255,216.99
  5. Step 5: Solve for x
    x = 332,255,216.99/20,933.14
  6. Step 6: Final answer
    x = 15,872.21

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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.