Home / 21,769.14-30,047.84-14,216.65

Finding the Fourth Proportional to 21,769.14, 30,047.84 and 14,216.65

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Solution

The fourth proportional to 21,769.14, 30,047.84 and 14,216.65 is: 19,623.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.14 : 30,047.84 = 14,216.65 : x
  2. Step 2: Convert to fraction form
    21,769.14/30,047.84 = 14,216.65/x
  3. Step 3: Cross multiply
    21,769.14x = 30,047.84 × 14,216.65
  4. Step 4: Simplify right side
    21,769.14x = 427,179,624.54
  5. Step 5: Solve for x
    x = 427,179,624.54/21,769.14
  6. Step 6: Final answer
    x = 19,623.17

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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.