Home / 20,449.36-30,627.60-18,084.88

Finding the Fourth Proportional to 20,449.36, 30,627.60 and 18,084.88

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Solution

The fourth proportional to 20,449.36, 30,627.60 and 18,084.88 is: 27,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.36 : 30,627.60 = 18,084.88 : x
  2. Step 2: Convert to fraction form
    20,449.36/30,627.60 = 18,084.88/x
  3. Step 3: Cross multiply
    20,449.36x = 30,627.60 × 18,084.88
  4. Step 4: Simplify right side
    20,449.36x = 553,896,470.69
  5. Step 5: Solve for x
    x = 553,896,470.69/20,449.36
  6. Step 6: Final answer
    x = 27,086.25

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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.