Home / 20,109.24-27,741.42-12,550.68

Finding the Fourth Proportional to 20,109.24, 27,741.42 and 12,550.68

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Solution

The fourth proportional to 20,109.24, 27,741.42 and 12,550.68 is: 17,314.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.24 : 27,741.42 = 12,550.68 : x
  2. Step 2: Convert to fraction form
    20,109.24/27,741.42 = 12,550.68/x
  3. Step 3: Cross multiply
    20,109.24x = 27,741.42 × 12,550.68
  4. Step 4: Simplify right side
    20,109.24x = 348,173,685.17
  5. Step 5: Solve for x
    x = 348,173,685.17/20,109.24
  6. Step 6: Final answer
    x = 17,314.11

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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.