Home / 20,632.32-30,893.01-16,978.68

Finding the Fourth Proportional to 20,632.32, 30,893.01 and 16,978.68

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Solution

The fourth proportional to 20,632.32, 30,893.01 and 16,978.68 is: 25,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.32 : 30,893.01 = 16,978.68 : x
  2. Step 2: Convert to fraction form
    20,632.32/30,893.01 = 16,978.68/x
  3. Step 3: Cross multiply
    20,632.32x = 30,893.01 × 16,978.68
  4. Step 4: Simplify right side
    20,632.32x = 524,522,531.03
  5. Step 5: Solve for x
    x = 524,522,531.03/20,632.32
  6. Step 6: Final answer
    x = 25,422.37

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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.