Home / 31,834.29-43,937.94-18,403.68

Finding the Fourth Proportional to 31,834.29, 43,937.94 and 18,403.68

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Solution

The fourth proportional to 31,834.29, 43,937.94 and 18,403.68 is: 25,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.29 : 43,937.94 = 18,403.68 : x
  2. Step 2: Convert to fraction form
    31,834.29/43,937.94 = 18,403.68/x
  3. Step 3: Cross multiply
    31,834.29x = 43,937.94 × 18,403.68
  4. Step 4: Simplify right side
    31,834.29x = 808,619,787.62
  5. Step 5: Solve for x
    x = 808,619,787.62/31,834.29
  6. Step 6: Final answer
    x = 25,400.91

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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.