Home / 18,482.40-27,719.52-5,331.90

Finding the Fourth Proportional to 18,482.40, 27,719.52 and 5,331.90

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Solution

The fourth proportional to 18,482.40, 27,719.52 and 5,331.90 is: 7,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.40 : 27,719.52 = 5,331.90 : x
  2. Step 2: Convert to fraction form
    18,482.40/27,719.52 = 5,331.90/x
  3. Step 3: Cross multiply
    18,482.40x = 27,719.52 × 5,331.90
  4. Step 4: Simplify right side
    18,482.40x = 147,797,708.69
  5. Step 5: Solve for x
    x = 147,797,708.69/18,482.40
  6. Step 6: Final answer
    x = 7,996.67

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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.