Home / 20,347.40-30,514.83-7,196.75

Finding the Fourth Proportional to 20,347.40, 30,514.83 and 7,196.75

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Solution

The fourth proportional to 20,347.40, 30,514.83 and 7,196.75 is: 10,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.40 : 30,514.83 = 7,196.75 : x
  2. Step 2: Convert to fraction form
    20,347.40/30,514.83 = 7,196.75/x
  3. Step 3: Cross multiply
    20,347.40x = 30,514.83 × 7,196.75
  4. Step 4: Simplify right side
    20,347.40x = 219,607,537.67
  5. Step 5: Solve for x
    x = 219,607,537.67/20,347.40
  6. Step 6: Final answer
    x = 10,792.90

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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.