Home / 20,250.09-30,374.96-6,399.09

Finding the Fourth Proportional to 20,250.09, 30,374.96 and 6,399.09

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Solution

The fourth proportional to 20,250.09, 30,374.96 and 6,399.09 is: 9,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.09 : 30,374.96 = 6,399.09 : x
  2. Step 2: Convert to fraction form
    20,250.09/30,374.96 = 6,399.09/x
  3. Step 3: Cross multiply
    20,250.09x = 30,374.96 × 6,399.09
  4. Step 4: Simplify right side
    20,250.09x = 194,372,070.79
  5. Step 5: Solve for x
    x = 194,372,070.79/20,250.09
  6. Step 6: Final answer
    x = 9,598.58

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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.