Home / 18,590.34-27,860.91-13,636.79

Finding the Fourth Proportional to 18,590.34, 27,860.91 and 13,636.79

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Solution

The fourth proportional to 18,590.34, 27,860.91 and 13,636.79 is: 20,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.34 : 27,860.91 = 13,636.79 : x
  2. Step 2: Convert to fraction form
    18,590.34/27,860.91 = 13,636.79/x
  3. Step 3: Cross multiply
    18,590.34x = 27,860.91 × 13,636.79
  4. Step 4: Simplify right side
    18,590.34x = 379,933,378.88
  5. Step 5: Solve for x
    x = 379,933,378.88/18,590.34
  6. Step 6: Final answer
    x = 20,437.14

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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.