Home / 20,249.50-30,393.70-9,868.54

Finding the Fourth Proportional to 20,249.50, 30,393.70 and 9,868.54

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Solution

The fourth proportional to 20,249.50, 30,393.70 and 9,868.54 is: 14,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.50 : 30,393.70 = 9,868.54 : x
  2. Step 2: Convert to fraction form
    20,249.50/30,393.70 = 9,868.54/x
  3. Step 3: Cross multiply
    20,249.50x = 30,393.70 × 9,868.54
  4. Step 4: Simplify right side
    20,249.50x = 299,941,444.20
  5. Step 5: Solve for x
    x = 299,941,444.20/20,249.50
  6. Step 6: Final answer
    x = 14,812.29

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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.