Home / 20,576.09-30,882.33-10,587.86

Finding the Fourth Proportional to 20,576.09, 30,882.33 and 10,587.86

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Solution

The fourth proportional to 20,576.09, 30,882.33 and 10,587.86 is: 15,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.09 : 30,882.33 = 10,587.86 : x
  2. Step 2: Convert to fraction form
    20,576.09/30,882.33 = 10,587.86/x
  3. Step 3: Cross multiply
    20,576.09x = 30,882.33 × 10,587.86
  4. Step 4: Simplify right side
    20,576.09x = 326,977,786.51
  5. Step 5: Solve for x
    x = 326,977,786.51/20,576.09
  6. Step 6: Final answer
    x = 15,891.15

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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.