Home / 20,123.25-30,186.54-6,272.25

Finding the Fourth Proportional to 20,123.25, 30,186.54 and 6,272.25

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Solution

The fourth proportional to 20,123.25, 30,186.54 and 6,272.25 is: 9,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.25 : 30,186.54 = 6,272.25 : x
  2. Step 2: Convert to fraction form
    20,123.25/30,186.54 = 6,272.25/x
  3. Step 3: Cross multiply
    20,123.25x = 30,186.54 × 6,272.25
  4. Step 4: Simplify right side
    20,123.25x = 189,337,525.52
  5. Step 5: Solve for x
    x = 189,337,525.52/20,123.25
  6. Step 6: Final answer
    x = 9,408.89

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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.