Home / 30,591.40-45,903.83-11,872.18

Finding the Fourth Proportional to 30,591.40, 45,903.83 and 11,872.18

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Solution

The fourth proportional to 30,591.40, 45,903.83 and 11,872.18 is: 17,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,591.40 : 45,903.83 = 11,872.18 : x
  2. Step 2: Convert to fraction form
    30,591.40/45,903.83 = 11,872.18/x
  3. Step 3: Cross multiply
    30,591.40x = 45,903.83 × 11,872.18
  4. Step 4: Simplify right side
    30,591.40x = 544,978,473.09
  5. Step 5: Solve for x
    x = 544,978,473.09/30,591.40
  6. Step 6: Final answer
    x = 17,814.76

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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.