Home / 20,180.66-27,852.26-12,114.86

Finding the Fourth Proportional to 20,180.66, 27,852.26 and 12,114.86

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Solution

The fourth proportional to 20,180.66, 27,852.26 and 12,114.86 is: 16,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.66 : 27,852.26 = 12,114.86 : x
  2. Step 2: Convert to fraction form
    20,180.66/27,852.26 = 12,114.86/x
  3. Step 3: Cross multiply
    20,180.66x = 27,852.26 × 12,114.86
  4. Step 4: Simplify right side
    20,180.66x = 337,426,030.75
  5. Step 5: Solve for x
    x = 337,426,030.75/20,180.66
  6. Step 6: Final answer
    x = 16,720.27

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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.