Home / 20,051.80-30,071.61-8,362.28

Finding the Fourth Proportional to 20,051.80, 30,071.61 and 8,362.28

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Solution

The fourth proportional to 20,051.80, 30,071.61 and 8,362.28 is: 12,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.80 : 30,071.61 = 8,362.28 : x
  2. Step 2: Convert to fraction form
    20,051.80/30,071.61 = 8,362.28/x
  3. Step 3: Cross multiply
    20,051.80x = 30,071.61 × 8,362.28
  4. Step 4: Simplify right side
    20,051.80x = 251,467,298.05
  5. Step 5: Solve for x
    x = 251,467,298.05/20,051.80
  6. Step 6: Final answer
    x = 12,540.89

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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.