Home / 19,905.80-27,470.32-10,954.22

Finding the Fourth Proportional to 19,905.80, 27,470.32 and 10,954.22

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Solution

The fourth proportional to 19,905.80, 27,470.32 and 10,954.22 is: 15,116.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.80 : 27,470.32 = 10,954.22 : x
  2. Step 2: Convert to fraction form
    19,905.80/27,470.32 = 10,954.22/x
  3. Step 3: Cross multiply
    19,905.80x = 27,470.32 × 10,954.22
  4. Step 4: Simplify right side
    19,905.80x = 300,915,764.01
  5. Step 5: Solve for x
    x = 300,915,764.01/19,905.80
  6. Step 6: Final answer
    x = 15,116.99

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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.