Home / 30,286.26-45,409.95-19,885.86

Finding the Fourth Proportional to 30,286.26, 45,409.95 and 19,885.86

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Solution

The fourth proportional to 30,286.26, 45,409.95 and 19,885.86 is: 29,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.26 : 45,409.95 = 19,885.86 : x
  2. Step 2: Convert to fraction form
    30,286.26/45,409.95 = 19,885.86/x
  3. Step 3: Cross multiply
    30,286.26x = 45,409.95 × 19,885.86
  4. Step 4: Simplify right side
    30,286.26x = 903,015,908.31
  5. Step 5: Solve for x
    x = 903,015,908.31/30,286.26
  6. Step 6: Final answer
    x = 29,816.03

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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.