Home / 21,631.88-29,824.94-18,051.99

Finding the Fourth Proportional to 21,631.88, 29,824.94 and 18,051.99

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Solution

The fourth proportional to 21,631.88, 29,824.94 and 18,051.99 is: 24,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.88 : 29,824.94 = 18,051.99 : x
  2. Step 2: Convert to fraction form
    21,631.88/29,824.94 = 18,051.99/x
  3. Step 3: Cross multiply
    21,631.88x = 29,824.94 × 18,051.99
  4. Step 4: Simplify right side
    21,631.88x = 538,399,563.76
  5. Step 5: Solve for x
    x = 538,399,563.76/21,631.88
  6. Step 6: Final answer
    x = 24,889.18

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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.