Home / 18,976.84-28,443.08-14,281.81

Finding the Fourth Proportional to 18,976.84, 28,443.08 and 14,281.81

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Solution

The fourth proportional to 18,976.84, 28,443.08 and 14,281.81 is: 21,406.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.84 : 28,443.08 = 14,281.81 : x
  2. Step 2: Convert to fraction form
    18,976.84/28,443.08 = 14,281.81/x
  3. Step 3: Cross multiply
    18,976.84x = 28,443.08 × 14,281.81
  4. Step 4: Simplify right side
    18,976.84x = 406,218,628.97
  5. Step 5: Solve for x
    x = 406,218,628.97/18,976.84
  6. Step 6: Final answer
    x = 21,406.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.