Home / 21,783.94-30,057.23-14,241.35

Finding the Fourth Proportional to 21,783.94, 30,057.23 and 14,241.35

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Solution

The fourth proportional to 21,783.94, 30,057.23 and 14,241.35 is: 19,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.94 : 30,057.23 = 14,241.35 : x
  2. Step 2: Convert to fraction form
    21,783.94/30,057.23 = 14,241.35/x
  3. Step 3: Cross multiply
    21,783.94x = 30,057.23 × 14,241.35
  4. Step 4: Simplify right side
    21,783.94x = 428,055,643.21
  5. Step 5: Solve for x
    x = 428,055,643.21/21,783.94
  6. Step 6: Final answer
    x = 19,650.06

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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.