Home / 20,164.36-27,840.66-12,613.96

Finding the Fourth Proportional to 20,164.36, 27,840.66 and 12,613.96

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Solution

The fourth proportional to 20,164.36, 27,840.66 and 12,613.96 is: 17,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.36 : 27,840.66 = 12,613.96 : x
  2. Step 2: Convert to fraction form
    20,164.36/27,840.66 = 12,613.96/x
  3. Step 3: Cross multiply
    20,164.36x = 27,840.66 × 12,613.96
  4. Step 4: Simplify right side
    20,164.36x = 351,180,971.61
  5. Step 5: Solve for x
    x = 351,180,971.61/20,164.36
  6. Step 6: Final answer
    x = 17,415.92

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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.