Home / 31,402.66-43,329.06-18,651.27

Finding the Fourth Proportional to 31,402.66, 43,329.06 and 18,651.27

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Solution

The fourth proportional to 31,402.66, 43,329.06 and 18,651.27 is: 25,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.66 : 43,329.06 = 18,651.27 : x
  2. Step 2: Convert to fraction form
    31,402.66/43,329.06 = 18,651.27/x
  3. Step 3: Cross multiply
    31,402.66x = 43,329.06 × 18,651.27
  4. Step 4: Simplify right side
    31,402.66x = 808,141,996.91
  5. Step 5: Solve for x
    x = 808,141,996.91/31,402.66
  6. Step 6: Final answer
    x = 25,734.83

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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.