Home / 20,867.28-31,300.97-6,076.55

Finding the Fourth Proportional to 20,867.28, 31,300.97 and 6,076.55

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Solution

The fourth proportional to 20,867.28, 31,300.97 and 6,076.55 is: 9,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.28 : 31,300.97 = 6,076.55 : x
  2. Step 2: Convert to fraction form
    20,867.28/31,300.97 = 6,076.55/x
  3. Step 3: Cross multiply
    20,867.28x = 31,300.97 × 6,076.55
  4. Step 4: Simplify right side
    20,867.28x = 190,201,909.25
  5. Step 5: Solve for x
    x = 190,201,909.25/20,867.28
  6. Step 6: Final answer
    x = 9,114.84

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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.