Home / 31,682.32-43,722.66-18,935.08

Finding the Fourth Proportional to 31,682.32, 43,722.66 and 18,935.08

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Solution

The fourth proportional to 31,682.32, 43,722.66 and 18,935.08 is: 26,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.32 : 43,722.66 = 18,935.08 : x
  2. Step 2: Convert to fraction form
    31,682.32/43,722.66 = 18,935.08/x
  3. Step 3: Cross multiply
    31,682.32x = 43,722.66 × 18,935.08
  4. Step 4: Simplify right side
    31,682.32x = 827,892,064.91
  5. Step 5: Solve for x
    x = 827,892,064.91/31,682.32
  6. Step 6: Final answer
    x = 26,131.04

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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.