Home / 21,999.56-30,351.43-14,449.99

Finding the Fourth Proportional to 21,999.56, 30,351.43 and 14,449.99

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Solution

The fourth proportional to 21,999.56, 30,351.43 and 14,449.99 is: 19,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.56 : 30,351.43 = 14,449.99 : x
  2. Step 2: Convert to fraction form
    21,999.56/30,351.43 = 14,449.99/x
  3. Step 3: Cross multiply
    21,999.56x = 30,351.43 × 14,449.99
  4. Step 4: Simplify right side
    21,999.56x = 438,577,859.99
  5. Step 5: Solve for x
    x = 438,577,859.99/21,999.56
  6. Step 6: Final answer
    x = 19,935.76

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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.