Home / 20,580.60-30,903.30-11,832.60

Finding the Fourth Proportional to 20,580.60, 30,903.30 and 11,832.60

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Solution

The fourth proportional to 20,580.60, 30,903.30 and 11,832.60 is: 17,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.60 : 30,903.30 = 11,832.60 : x
  2. Step 2: Convert to fraction form
    20,580.60/30,903.30 = 11,832.60/x
  3. Step 3: Cross multiply
    20,580.60x = 30,903.30 × 11,832.60
  4. Step 4: Simplify right side
    20,580.60x = 365,666,387.58
  5. Step 5: Solve for x
    x = 365,666,387.58/20,580.60
  6. Step 6: Final answer
    x = 17,767.53

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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.