Home / 27,135.66-37,451.64-18,630.72

Finding the Fourth Proportional to 27,135.66, 37,451.64 and 18,630.72

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Solution

The fourth proportional to 27,135.66, 37,451.64 and 18,630.72 is: 25,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.66 : 37,451.64 = 18,630.72 : x
  2. Step 2: Convert to fraction form
    27,135.66/37,451.64 = 18,630.72/x
  3. Step 3: Cross multiply
    27,135.66x = 37,451.64 × 18,630.72
  4. Step 4: Simplify right side
    27,135.66x = 697,751,018.38
  5. Step 5: Solve for x
    x = 697,751,018.38/27,135.66
  6. Step 6: Final answer
    x = 25,713.43

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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.