Home / 20,845.84-28,595.96-19,716

Finding the Fourth Proportional to 20,845.84, 28,595.96 and 19,716

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Solution

The fourth proportional to 20,845.84, 28,595.96 and 19,716 is: 27,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.84 : 28,595.96 = 19,716 : x
  2. Step 2: Convert to fraction form
    20,845.84/28,595.96 = 19,716/x
  3. Step 3: Cross multiply
    20,845.84x = 28,595.96 × 19,716
  4. Step 4: Simplify right side
    20,845.84x = 563,797,947.36
  5. Step 5: Solve for x
    x = 563,797,947.36/20,845.84
  6. Step 6: Final answer
    x = 27,046.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.