Home / 20,036.86-27,651.14-12,486.24

Finding the Fourth Proportional to 20,036.86, 27,651.14 and 12,486.24

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Solution

The fourth proportional to 20,036.86, 27,651.14 and 12,486.24 is: 17,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.86 : 27,651.14 = 12,486.24 : x
  2. Step 2: Convert to fraction form
    20,036.86/27,651.14 = 12,486.24/x
  3. Step 3: Cross multiply
    20,036.86x = 27,651.14 × 12,486.24
  4. Step 4: Simplify right side
    20,036.86x = 345,258,770.31
  5. Step 5: Solve for x
    x = 345,258,770.31/20,036.86
  6. Step 6: Final answer
    x = 17,231.18

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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.