Home / 20,039.21-30,082.10-11,725.19

Finding the Fourth Proportional to 20,039.21, 30,082.10 and 11,725.19

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Solution

The fourth proportional to 20,039.21, 30,082.10 and 11,725.19 is: 17,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.21 : 30,082.10 = 11,725.19 : x
  2. Step 2: Convert to fraction form
    20,039.21/30,082.10 = 11,725.19/x
  3. Step 3: Cross multiply
    20,039.21x = 30,082.10 × 11,725.19
  4. Step 4: Simplify right side
    20,039.21x = 352,718,307.82
  5. Step 5: Solve for x
    x = 352,718,307.82/20,039.21
  6. Step 6: Final answer
    x = 17,601.41

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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.