Home / 20,262.15-30,394.44-7,115.45

Finding the Fourth Proportional to 20,262.15, 30,394.44 and 7,115.45

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Solution

The fourth proportional to 20,262.15, 30,394.44 and 7,115.45 is: 10,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.15 : 30,394.44 = 7,115.45 : x
  2. Step 2: Convert to fraction form
    20,262.15/30,394.44 = 7,115.45/x
  3. Step 3: Cross multiply
    20,262.15x = 30,394.44 × 7,115.45
  4. Step 4: Simplify right side
    20,262.15x = 216,269,966.13
  5. Step 5: Solve for x
    x = 216,269,966.13/20,262.15
  6. Step 6: Final answer
    x = 10,673.59

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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.