Home / 19,879.84-27,435.56-13,153.82

Finding the Fourth Proportional to 19,879.84, 27,435.56 and 13,153.82

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Solution

The fourth proportional to 19,879.84, 27,435.56 and 13,153.82 is: 18,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.84 : 27,435.56 = 13,153.82 : x
  2. Step 2: Convert to fraction form
    19,879.84/27,435.56 = 13,153.82/x
  3. Step 3: Cross multiply
    19,879.84x = 27,435.56 × 13,153.82
  4. Step 4: Simplify right side
    19,879.84x = 360,882,417.84
  5. Step 5: Solve for x
    x = 360,882,417.84/19,879.84
  6. Step 6: Final answer
    x = 18,153.19

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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.