Home / 20,537.86-30,820.46-11,180.23

Finding the Fourth Proportional to 20,537.86, 30,820.46 and 11,180.23

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Solution

The fourth proportional to 20,537.86, 30,820.46 and 11,180.23 is: 16,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.86 : 30,820.46 = 11,180.23 : x
  2. Step 2: Convert to fraction form
    20,537.86/30,820.46 = 11,180.23/x
  3. Step 3: Cross multiply
    20,537.86x = 30,820.46 × 11,180.23
  4. Step 4: Simplify right side
    20,537.86x = 344,579,831.51
  5. Step 5: Solve for x
    x = 344,579,831.51/20,537.86
  6. Step 6: Final answer
    x = 16,777.79

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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.