Home / 21,700.44-29,941.74-13,206.96

Finding the Fourth Proportional to 21,700.44, 29,941.74 and 13,206.96

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Solution

The fourth proportional to 21,700.44, 29,941.74 and 13,206.96 is: 18,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.44 : 29,941.74 = 13,206.96 : x
  2. Step 2: Convert to fraction form
    21,700.44/29,941.74 = 13,206.96/x
  3. Step 3: Cross multiply
    21,700.44x = 29,941.74 × 13,206.96
  4. Step 4: Simplify right side
    21,700.44x = 395,439,362.51
  5. Step 5: Solve for x
    x = 395,439,362.51/21,700.44
  6. Step 6: Final answer
    x = 18,222.64

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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.