Home / 21,661.26-29,909.43-16,958.94

Finding the Fourth Proportional to 21,661.26, 29,909.43 and 16,958.94

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Solution

The fourth proportional to 21,661.26, 29,909.43 and 16,958.94 is: 23,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.26 : 29,909.43 = 16,958.94 : x
  2. Step 2: Convert to fraction form
    21,661.26/29,909.43 = 16,958.94/x
  3. Step 3: Cross multiply
    21,661.26x = 29,909.43 × 16,958.94
  4. Step 4: Simplify right side
    21,661.26x = 507,232,228.80
  5. Step 5: Solve for x
    x = 507,232,228.80/21,661.26
  6. Step 6: Final answer
    x = 23,416.56

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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.