Home / 20,658.16-28,495.32-17,199.88

Finding the Fourth Proportional to 20,658.16, 28,495.32 and 17,199.88

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Solution

The fourth proportional to 20,658.16, 28,495.32 and 17,199.88 is: 23,725.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.16 : 28,495.32 = 17,199.88 : x
  2. Step 2: Convert to fraction form
    20,658.16/28,495.32 = 17,199.88/x
  3. Step 3: Cross multiply
    20,658.16x = 28,495.32 × 17,199.88
  4. Step 4: Simplify right side
    20,658.16x = 490,116,084.56
  5. Step 5: Solve for x
    x = 490,116,084.56/20,658.16
  6. Step 6: Final answer
    x = 23,725.06

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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.