Home / 17,178.15-23,753.58-13,635.21

Finding the Fourth Proportional to 17,178.15, 23,753.58 and 13,635.21

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Solution

The fourth proportional to 17,178.15, 23,753.58 and 13,635.21 is: 18,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,178.15 : 23,753.58 = 13,635.21 : x
  2. Step 2: Convert to fraction form
    17,178.15/23,753.58 = 13,635.21/x
  3. Step 3: Cross multiply
    17,178.15x = 23,753.58 × 13,635.21
  4. Step 4: Simplify right side
    17,178.15x = 323,885,051.55
  5. Step 5: Solve for x
    x = 323,885,051.55/17,178.15
  6. Step 6: Final answer
    x = 18,854.48

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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.