Home / 21,901.44-30,220.68-12,340.92

Finding the Fourth Proportional to 21,901.44, 30,220.68 and 12,340.92

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Solution

The fourth proportional to 21,901.44, 30,220.68 and 12,340.92 is: 17,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.44 : 30,220.68 = 12,340.92 : x
  2. Step 2: Convert to fraction form
    21,901.44/30,220.68 = 12,340.92/x
  3. Step 3: Cross multiply
    21,901.44x = 30,220.68 × 12,340.92
  4. Step 4: Simplify right side
    21,901.44x = 372,950,994.23
  5. Step 5: Solve for x
    x = 372,950,994.23/21,901.44
  6. Step 6: Final answer
    x = 17,028.61

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Half scale
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Double scale
Find fourth proportional to 21,902.44, 30,222.06 and 12,341.92
Similar ratio
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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.