Home / 20,590.42-28,383.33-12,617.86

Finding the Fourth Proportional to 20,590.42, 28,383.33 and 12,617.86

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Solution

The fourth proportional to 20,590.42, 28,383.33 and 12,617.86 is: 17,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.42 : 28,383.33 = 12,617.86 : x
  2. Step 2: Convert to fraction form
    20,590.42/28,383.33 = 12,617.86/x
  3. Step 3: Cross multiply
    20,590.42x = 28,383.33 × 12,617.86
  4. Step 4: Simplify right side
    20,590.42x = 358,136,884.27
  5. Step 5: Solve for x
    x = 358,136,884.27/20,590.42
  6. Step 6: Final answer
    x = 17,393.37

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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.