Home / 20,039.60-30,030.64-11,256.02

Finding the Fourth Proportional to 20,039.60, 30,030.64 and 11,256.02

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Solution

The fourth proportional to 20,039.60, 30,030.64 and 11,256.02 is: 16,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.60 : 30,030.64 = 11,256.02 : x
  2. Step 2: Convert to fraction form
    20,039.60/30,030.64 = 11,256.02/x
  3. Step 3: Cross multiply
    20,039.60x = 30,030.64 × 11,256.02
  4. Step 4: Simplify right side
    20,039.60x = 338,025,531.39
  5. Step 5: Solve for x
    x = 338,025,531.39/20,039.60
  6. Step 6: Final answer
    x = 16,867.88

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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.