Home / 21,973.80-30,323.46-11,902.17

Finding the Fourth Proportional to 21,973.80, 30,323.46 and 11,902.17

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Solution

The fourth proportional to 21,973.80, 30,323.46 and 11,902.17 is: 16,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.80 : 30,323.46 = 11,902.17 : x
  2. Step 2: Convert to fraction form
    21,973.80/30,323.46 = 11,902.17/x
  3. Step 3: Cross multiply
    21,973.80x = 30,323.46 × 11,902.17
  4. Step 4: Simplify right side
    21,973.80x = 360,914,975.91
  5. Step 5: Solve for x
    x = 360,914,975.91/21,973.80
  6. Step 6: Final answer
    x = 16,424.79

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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.