Home / 20,995.76-28,952.29-16,216.49

Finding the Fourth Proportional to 20,995.76, 28,952.29 and 16,216.49

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Solution

The fourth proportional to 20,995.76, 28,952.29 and 16,216.49 is: 22,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.76 : 28,952.29 = 16,216.49 : x
  2. Step 2: Convert to fraction form
    20,995.76/28,952.29 = 16,216.49/x
  3. Step 3: Cross multiply
    20,995.76x = 28,952.29 × 16,216.49
  4. Step 4: Simplify right side
    20,995.76x = 469,504,521.26
  5. Step 5: Solve for x
    x = 469,504,521.26/20,995.76
  6. Step 6: Final answer
    x = 22,361.87

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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.