Home / 20,576.96-30,859.08-7,427.66

Finding the Fourth Proportional to 20,576.96, 30,859.08 and 7,427.66

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Solution

The fourth proportional to 20,576.96, 30,859.08 and 7,427.66 is: 11,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.96 : 30,859.08 = 7,427.66 : x
  2. Step 2: Convert to fraction form
    20,576.96/30,859.08 = 7,427.66/x
  3. Step 3: Cross multiply
    20,576.96x = 30,859.08 × 7,427.66
  4. Step 4: Simplify right side
    20,576.96x = 229,210,754.15
  5. Step 5: Solve for x
    x = 229,210,754.15/20,576.96
  6. Step 6: Final answer
    x = 11,139.19

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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.