Home / 20,180.07-27,812.25-16,415.64

Finding the Fourth Proportional to 20,180.07, 27,812.25 and 16,415.64

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Solution

The fourth proportional to 20,180.07, 27,812.25 and 16,415.64 is: 22,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.07 : 27,812.25 = 16,415.64 : x
  2. Step 2: Convert to fraction form
    20,180.07/27,812.25 = 16,415.64/x
  3. Step 3: Cross multiply
    20,180.07x = 27,812.25 × 16,415.64
  4. Step 4: Simplify right side
    20,180.07x = 456,555,883.59
  5. Step 5: Solve for x
    x = 456,555,883.59/20,180.07
  6. Step 6: Final answer
    x = 22,624.10

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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.