Home / 20,883.38-31,325.28-16,717.96

Finding the Fourth Proportional to 20,883.38, 31,325.28 and 16,717.96

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Solution

The fourth proportional to 20,883.38, 31,325.28 and 16,717.96 is: 25,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.38 : 31,325.28 = 16,717.96 : x
  2. Step 2: Convert to fraction form
    20,883.38/31,325.28 = 16,717.96/x
  3. Step 3: Cross multiply
    20,883.38x = 31,325.28 × 16,717.96
  4. Step 4: Simplify right side
    20,883.38x = 523,694,537.81
  5. Step 5: Solve for x
    x = 523,694,537.81/20,883.38
  6. Step 6: Final answer
    x = 25,077.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.