Home / 21,243.92-29,273.35-16,434.64

Finding the Fourth Proportional to 21,243.92, 29,273.35 and 16,434.64

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Solution

The fourth proportional to 21,243.92, 29,273.35 and 16,434.64 is: 22,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.92 : 29,273.35 = 16,434.64 : x
  2. Step 2: Convert to fraction form
    21,243.92/29,273.35 = 16,434.64/x
  3. Step 3: Cross multiply
    21,243.92x = 29,273.35 × 16,434.64
  4. Step 4: Simplify right side
    21,243.92x = 481,096,968.84
  5. Step 5: Solve for x
    x = 481,096,968.84/21,243.92
  6. Step 6: Final answer
    x = 22,646.34

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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.