Home / 21,343.94-29,454.62-11,783.84

Finding the Fourth Proportional to 21,343.94, 29,454.62 and 11,783.84

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Solution

The fourth proportional to 21,343.94, 29,454.62 and 11,783.84 is: 16,261.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.94 : 29,454.62 = 11,783.84 : x
  2. Step 2: Convert to fraction form
    21,343.94/29,454.62 = 11,783.84/x
  3. Step 3: Cross multiply
    21,343.94x = 29,454.62 × 11,783.84
  4. Step 4: Simplify right side
    21,343.94x = 347,088,529.34
  5. Step 5: Solve for x
    x = 347,088,529.34/21,343.94
  6. Step 6: Final answer
    x = 16,261.69

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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.