Home / 20,150.76-27,792.96-12,182.79

Finding the Fourth Proportional to 20,150.76, 27,792.96 and 12,182.79

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Solution

The fourth proportional to 20,150.76, 27,792.96 and 12,182.79 is: 16,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.76 : 27,792.96 = 12,182.79 : x
  2. Step 2: Convert to fraction form
    20,150.76/27,792.96 = 12,182.79/x
  3. Step 3: Cross multiply
    20,150.76x = 27,792.96 × 12,182.79
  4. Step 4: Simplify right side
    20,150.76x = 338,595,795.16
  5. Step 5: Solve for x
    x = 338,595,795.16/20,150.76
  6. Step 6: Final answer
    x = 16,803.13

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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.