Home / 20,036.25-30,054.21-8,187.48

Finding the Fourth Proportional to 20,036.25, 30,054.21 and 8,187.48

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Solution

The fourth proportional to 20,036.25, 30,054.21 and 8,187.48 is: 12,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.25 : 30,054.21 = 8,187.48 : x
  2. Step 2: Convert to fraction form
    20,036.25/30,054.21 = 8,187.48/x
  3. Step 3: Cross multiply
    20,036.25x = 30,054.21 × 8,187.48
  4. Step 4: Simplify right side
    20,036.25x = 246,068,243.29
  5. Step 5: Solve for x
    x = 246,068,243.29/20,036.25
  6. Step 6: Final answer
    x = 12,281.15

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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.