Home / 21,973.96-30,323.89-11,902.17

Finding the Fourth Proportional to 21,973.96, 30,323.89 and 11,902.17

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Solution

The fourth proportional to 21,973.96, 30,323.89 and 11,902.17 is: 16,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.96 : 30,323.89 = 11,902.17 : x
  2. Step 2: Convert to fraction form
    21,973.96/30,323.89 = 11,902.17/x
  3. Step 3: Cross multiply
    21,973.96x = 30,323.89 × 11,902.17
  4. Step 4: Simplify right side
    21,973.96x = 360,920,093.84
  5. Step 5: Solve for x
    x = 360,920,093.84/21,973.96
  6. Step 6: Final answer
    x = 16,424.90

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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.