Home / 20,294.15-30,444.26-7,144.20

Finding the Fourth Proportional to 20,294.15, 30,444.26 and 7,144.20

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Solution

The fourth proportional to 20,294.15, 30,444.26 and 7,144.20 is: 10,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.15 : 30,444.26 = 7,144.20 : x
  2. Step 2: Convert to fraction form
    20,294.15/30,444.26 = 7,144.20/x
  3. Step 3: Cross multiply
    20,294.15x = 30,444.26 × 7,144.20
  4. Step 4: Simplify right side
    20,294.15x = 217,499,958.40
  5. Step 5: Solve for x
    x = 217,499,958.40/20,294.15
  6. Step 6: Final answer
    x = 10,717.37

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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.