Home / 20,450.56-28,140.87-17,082.58

Finding the Fourth Proportional to 20,450.56, 28,140.87 and 17,082.58

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Solution

The fourth proportional to 20,450.56, 28,140.87 and 17,082.58 is: 23,506.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.56 : 28,140.87 = 17,082.58 : x
  2. Step 2: Convert to fraction form
    20,450.56/28,140.87 = 17,082.58/x
  3. Step 3: Cross multiply
    20,450.56x = 28,140.87 × 17,082.58
  4. Step 4: Simplify right side
    20,450.56x = 480,718,663.04
  5. Step 5: Solve for x
    x = 480,718,663.04/20,450.56
  6. Step 6: Final answer
    x = 23,506.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.