Home / 20,567.90-30,843.16-8,085.96

Finding the Fourth Proportional to 20,567.90, 30,843.16 and 8,085.96

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Solution

The fourth proportional to 20,567.90, 30,843.16 and 8,085.96 is: 12,125.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.90 : 30,843.16 = 8,085.96 : x
  2. Step 2: Convert to fraction form
    20,567.90/30,843.16 = 8,085.96/x
  3. Step 3: Cross multiply
    20,567.90x = 30,843.16 × 8,085.96
  4. Step 4: Simplify right side
    20,567.90x = 249,396,537.82
  5. Step 5: Solve for x
    x = 249,396,537.82/20,567.90
  6. Step 6: Final answer
    x = 12,125.52

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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.