Home / 20,936.70-28,903.91-16,146.16

Finding the Fourth Proportional to 20,936.70, 28,903.91 and 16,146.16

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Solution

The fourth proportional to 20,936.70, 28,903.91 and 16,146.16 is: 22,290.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.70 : 28,903.91 = 16,146.16 : x
  2. Step 2: Convert to fraction form
    20,936.70/28,903.91 = 16,146.16/x
  3. Step 3: Cross multiply
    20,936.70x = 28,903.91 × 16,146.16
  4. Step 4: Simplify right side
    20,936.70x = 466,687,002.50
  5. Step 5: Solve for x
    x = 466,687,002.50/20,936.70
  6. Step 6: Final answer
    x = 22,290.38

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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.