Home / 31,682.04-43,715.90-18,940.38

Finding the Fourth Proportional to 31,682.04, 43,715.90 and 18,940.38

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Solution

The fourth proportional to 31,682.04, 43,715.90 and 18,940.38 is: 26,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.04 : 43,715.90 = 18,940.38 : x
  2. Step 2: Convert to fraction form
    31,682.04/43,715.90 = 18,940.38/x
  3. Step 3: Cross multiply
    31,682.04x = 43,715.90 × 18,940.38
  4. Step 4: Simplify right side
    31,682.04x = 827,995,887.36
  5. Step 5: Solve for x
    x = 827,995,887.36/31,682.04
  6. Step 6: Final answer
    x = 26,134.55

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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.