Home / 19,871.84-27,424.48-11,376.64

Finding the Fourth Proportional to 19,871.84, 27,424.48 and 11,376.64

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Solution

The fourth proportional to 19,871.84, 27,424.48 and 11,376.64 is: 15,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.84 : 27,424.48 = 11,376.64 : x
  2. Step 2: Convert to fraction form
    19,871.84/27,424.48 = 11,376.64/x
  3. Step 3: Cross multiply
    19,871.84x = 27,424.48 × 11,376.64
  4. Step 4: Simplify right side
    19,871.84x = 311,998,436.15
  5. Step 5: Solve for x
    x = 311,998,436.15/19,871.84
  6. Step 6: Final answer
    x = 15,700.53

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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.