Home / 20,867.16-31,300.79-6,076.43

Finding the Fourth Proportional to 20,867.16, 31,300.79 and 6,076.43

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Solution

The fourth proportional to 20,867.16, 31,300.79 and 6,076.43 is: 9,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.16 : 31,300.79 = 6,076.43 : x
  2. Step 2: Convert to fraction form
    20,867.16/31,300.79 = 6,076.43/x
  3. Step 3: Cross multiply
    20,867.16x = 31,300.79 × 6,076.43
  4. Step 4: Simplify right side
    20,867.16x = 190,197,029.00
  5. Step 5: Solve for x
    x = 190,197,029.00/20,867.16
  6. Step 6: Final answer
    x = 9,114.66

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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.