Home / 20,958.06-28,892.28-16,671.54

Finding the Fourth Proportional to 20,958.06, 28,892.28 and 16,671.54

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Solution

The fourth proportional to 20,958.06, 28,892.28 and 16,671.54 is: 22,982.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.06 : 28,892.28 = 16,671.54 : x
  2. Step 2: Convert to fraction form
    20,958.06/28,892.28 = 16,671.54/x
  3. Step 3: Cross multiply
    20,958.06x = 28,892.28 × 16,671.54
  4. Step 4: Simplify right side
    20,958.06x = 481,678,801.71
  5. Step 5: Solve for x
    x = 481,678,801.71/20,958.06
  6. Step 6: Final answer
    x = 22,982.99

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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.