Home / 20,886.58-31,323.70-6,090.85

Finding the Fourth Proportional to 20,886.58, 31,323.70 and 6,090.85

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Solution

The fourth proportional to 20,886.58, 31,323.70 and 6,090.85 is: 9,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.58 : 31,323.70 = 6,090.85 : x
  2. Step 2: Convert to fraction form
    20,886.58/31,323.70 = 6,090.85/x
  3. Step 3: Cross multiply
    20,886.58x = 31,323.70 × 6,090.85
  4. Step 4: Simplify right side
    20,886.58x = 190,787,958.15
  5. Step 5: Solve for x
    x = 190,787,958.15/20,886.58
  6. Step 6: Final answer
    x = 9,134.48

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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.