Home / 20,440.48-28,186.86-17,082.04

Finding the Fourth Proportional to 20,440.48, 28,186.86 and 17,082.04

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Solution

The fourth proportional to 20,440.48, 28,186.86 and 17,082.04 is: 23,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.48 : 28,186.86 = 17,082.04 : x
  2. Step 2: Convert to fraction form
    20,440.48/28,186.86 = 17,082.04/x
  3. Step 3: Cross multiply
    20,440.48x = 28,186.86 × 17,082.04
  4. Step 4: Simplify right side
    20,440.48x = 481,489,069.99
  5. Step 5: Solve for x
    x = 481,489,069.99/20,440.48
  6. Step 6: Final answer
    x = 23,555.66

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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.