Home / 20,132.93-27,783.51-11,180.45

Finding the Fourth Proportional to 20,132.93, 27,783.51 and 11,180.45

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Solution

The fourth proportional to 20,132.93, 27,783.51 and 11,180.45 is: 15,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.93 : 27,783.51 = 11,180.45 : x
  2. Step 2: Convert to fraction form
    20,132.93/27,783.51 = 11,180.45/x
  3. Step 3: Cross multiply
    20,132.93x = 27,783.51 × 11,180.45
  4. Step 4: Simplify right side
    20,132.93x = 310,632,144.38
  5. Step 5: Solve for x
    x = 310,632,144.38/20,132.93
  6. Step 6: Final answer
    x = 15,429.06

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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.