Home / 30,239.56-45,359.43-9,179.76

Finding the Fourth Proportional to 30,239.56, 45,359.43 and 9,179.76

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Solution

The fourth proportional to 30,239.56, 45,359.43 and 9,179.76 is: 13,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.56 : 45,359.43 = 9,179.76 : x
  2. Step 2: Convert to fraction form
    30,239.56/45,359.43 = 9,179.76/x
  3. Step 3: Cross multiply
    30,239.56x = 45,359.43 × 9,179.76
  4. Step 4: Simplify right side
    30,239.56x = 416,388,816.81
  5. Step 5: Solve for x
    x = 416,388,816.81/30,239.56
  6. Step 6: Final answer
    x = 13,769.67

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Similar ratio
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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.