Home / 31,536.92-43,527.26-18,117.38

Finding the Fourth Proportional to 31,536.92, 43,527.26 and 18,117.38

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Solution

The fourth proportional to 31,536.92, 43,527.26 and 18,117.38 is: 25,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.92 : 43,527.26 = 18,117.38 : x
  2. Step 2: Convert to fraction form
    31,536.92/43,527.26 = 18,117.38/x
  3. Step 3: Cross multiply
    31,536.92x = 43,527.26 × 18,117.38
  4. Step 4: Simplify right side
    31,536.92x = 788,599,909.78
  5. Step 5: Solve for x
    x = 788,599,909.78/31,536.92
  6. Step 6: Final answer
    x = 25,005.61

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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.