Home / 20,976.65-31,464.94-14,382.84

Finding the Fourth Proportional to 20,976.65, 31,464.94 and 14,382.84

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Solution

The fourth proportional to 20,976.65, 31,464.94 and 14,382.84 is: 21,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.65 : 31,464.94 = 14,382.84 : x
  2. Step 2: Convert to fraction form
    20,976.65/31,464.94 = 14,382.84/x
  3. Step 3: Cross multiply
    20,976.65x = 31,464.94 × 14,382.84
  4. Step 4: Simplify right side
    20,976.65x = 452,555,197.63
  5. Step 5: Solve for x
    x = 452,555,197.63/20,976.65
  6. Step 6: Final answer
    x = 21,574.24

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1.5x scale

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.