Home / 20,567.35-28,383.48-12,613.96

Finding the Fourth Proportional to 20,567.35, 28,383.48 and 12,613.96

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Solution

The fourth proportional to 20,567.35, 28,383.48 and 12,613.96 is: 17,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.35 : 28,383.48 = 12,613.96 : x
  2. Step 2: Convert to fraction form
    20,567.35/28,383.48 = 12,613.96/x
  3. Step 3: Cross multiply
    20,567.35x = 28,383.48 × 12,613.96
  4. Step 4: Simplify right side
    20,567.35x = 358,028,116.86
  5. Step 5: Solve for x
    x = 358,028,116.86/20,567.35
  6. Step 6: Final answer
    x = 17,407.59

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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.