Home / 19,817.76-27,338.40-15,093.84

Finding the Fourth Proportional to 19,817.76, 27,338.40 and 15,093.84

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Solution

The fourth proportional to 19,817.76, 27,338.40 and 15,093.84 is: 20,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.76 : 27,338.40 = 15,093.84 : x
  2. Step 2: Convert to fraction form
    19,817.76/27,338.40 = 15,093.84/x
  3. Step 3: Cross multiply
    19,817.76x = 27,338.40 × 15,093.84
  4. Step 4: Simplify right side
    19,817.76x = 412,641,435.46
  5. Step 5: Solve for x
    x = 412,641,435.46/19,817.76
  6. Step 6: Final answer
    x = 20,821.80

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1.5x scale

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.