Home / 20,125.27-30,188.01-11,799.45

Finding the Fourth Proportional to 20,125.27, 30,188.01 and 11,799.45

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Solution

The fourth proportional to 20,125.27, 30,188.01 and 11,799.45 is: 17,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.27 : 30,188.01 = 11,799.45 : x
  2. Step 2: Convert to fraction form
    20,125.27/30,188.01 = 11,799.45/x
  3. Step 3: Cross multiply
    20,125.27x = 30,188.01 × 11,799.45
  4. Step 4: Simplify right side
    20,125.27x = 356,201,857.99
  5. Step 5: Solve for x
    x = 356,201,857.99/20,125.27
  6. Step 6: Final answer
    x = 17,699.23

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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.