Home / 20,928.87-28,895.40-14,553.36

Finding the Fourth Proportional to 20,928.87, 28,895.40 and 14,553.36

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Solution

The fourth proportional to 20,928.87, 28,895.40 and 14,553.36 is: 20,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.87 : 28,895.40 = 14,553.36 : x
  2. Step 2: Convert to fraction form
    20,928.87/28,895.40 = 14,553.36/x
  3. Step 3: Cross multiply
    20,928.87x = 28,895.40 × 14,553.36
  4. Step 4: Simplify right side
    20,928.87x = 420,525,158.54
  5. Step 5: Solve for x
    x = 420,525,158.54/20,928.87
  6. Step 6: Final answer
    x = 20,093.07

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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.