Home / 20,576.08-28,394.31-11,501.19

Finding the Fourth Proportional to 20,576.08, 28,394.31 and 11,501.19

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Solution

The fourth proportional to 20,576.08, 28,394.31 and 11,501.19 is: 15,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.08 : 28,394.31 = 11,501.19 : x
  2. Step 2: Convert to fraction form
    20,576.08/28,394.31 = 11,501.19/x
  3. Step 3: Cross multiply
    20,576.08x = 28,394.31 × 11,501.19
  4. Step 4: Simplify right side
    20,576.08x = 326,568,397.36
  5. Step 5: Solve for x
    x = 326,568,397.36/20,576.08
  6. Step 6: Final answer
    x = 15,871.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.