Home / 20,370.86-30,554.96-7,043.48

Finding the Fourth Proportional to 20,370.86, 30,554.96 and 7,043.48

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Solution

The fourth proportional to 20,370.86, 30,554.96 and 7,043.48 is: 10,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.86 : 30,554.96 = 7,043.48 : x
  2. Step 2: Convert to fraction form
    20,370.86/30,554.96 = 7,043.48/x
  3. Step 3: Cross multiply
    20,370.86x = 30,554.96 × 7,043.48
  4. Step 4: Simplify right side
    20,370.86x = 215,213,096.89
  5. Step 5: Solve for x
    x = 215,213,096.89/20,370.86
  6. Step 6: Final answer
    x = 10,564.76

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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.