Home / 20,117.62-27,762.19-11,619.63

Finding the Fourth Proportional to 20,117.62, 27,762.19 and 11,619.63

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Solution

The fourth proportional to 20,117.62, 27,762.19 and 11,619.63 is: 16,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.62 : 27,762.19 = 11,619.63 : x
  2. Step 2: Convert to fraction form
    20,117.62/27,762.19 = 11,619.63/x
  3. Step 3: Cross multiply
    20,117.62x = 27,762.19 × 11,619.63
  4. Step 4: Simplify right side
    20,117.62x = 322,586,375.79
  5. Step 5: Solve for x
    x = 322,586,375.79/20,117.62
  6. Step 6: Final answer
    x = 16,035.02

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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.