Home / 20,541.09-30,811.64-4,958.72

Finding the Fourth Proportional to 20,541.09, 30,811.64 and 4,958.72

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Solution

The fourth proportional to 20,541.09, 30,811.64 and 4,958.72 is: 7,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.09 : 30,811.64 = 4,958.72 : x
  2. Step 2: Convert to fraction form
    20,541.09/30,811.64 = 4,958.72/x
  3. Step 3: Cross multiply
    20,541.09x = 30,811.64 × 4,958.72
  4. Step 4: Simplify right side
    20,541.09x = 152,786,260.09
  5. Step 5: Solve for x
    x = 152,786,260.09/20,541.09
  6. Step 6: Final answer
    x = 7,438.08

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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.