Home / 20,499.04-30,729.36-11,125.30

Finding the Fourth Proportional to 20,499.04, 30,729.36 and 11,125.30

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Solution

The fourth proportional to 20,499.04, 30,729.36 and 11,125.30 is: 16,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.04 : 30,729.36 = 11,125.30 : x
  2. Step 2: Convert to fraction form
    20,499.04/30,729.36 = 11,125.30/x
  3. Step 3: Cross multiply
    20,499.04x = 30,729.36 × 11,125.30
  4. Step 4: Simplify right side
    20,499.04x = 341,873,348.81
  5. Step 5: Solve for x
    x = 341,873,348.81/20,499.04
  6. Step 6: Final answer
    x = 16,677.53

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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.