Home / 20,249.81-30,374.98-7,102.56

Finding the Fourth Proportional to 20,249.81, 30,374.98 and 7,102.56

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Solution

The fourth proportional to 20,249.81, 30,374.98 and 7,102.56 is: 10,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.81 : 30,374.98 = 7,102.56 : x
  2. Step 2: Convert to fraction form
    20,249.81/30,374.98 = 7,102.56/x
  3. Step 3: Cross multiply
    20,249.81x = 30,374.98 × 7,102.56
  4. Step 4: Simplify right side
    20,249.81x = 215,740,117.95
  5. Step 5: Solve for x
    x = 215,740,117.95/20,249.81
  6. Step 6: Final answer
    x = 10,653.93

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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.