Home / 20,883.29-31,321.60-6,088.75

Finding the Fourth Proportional to 20,883.29, 31,321.60 and 6,088.75

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Solution

The fourth proportional to 20,883.29, 31,321.60 and 6,088.75 is: 9,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.29 : 31,321.60 = 6,088.75 : x
  2. Step 2: Convert to fraction form
    20,883.29/31,321.60 = 6,088.75/x
  3. Step 3: Cross multiply
    20,883.29x = 31,321.60 × 6,088.75
  4. Step 4: Simplify right side
    20,883.29x = 190,709,392
  5. Step 5: Solve for x
    x = 190,709,392/20,883.29
  6. Step 6: Final answer
    x = 9,132.15

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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.