Home / 31,568.09-43,562.14-18,835.70

Finding the Fourth Proportional to 31,568.09, 43,562.14 and 18,835.70

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Solution

The fourth proportional to 31,568.09, 43,562.14 and 18,835.70 is: 25,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.09 : 43,562.14 = 18,835.70 : x
  2. Step 2: Convert to fraction form
    31,568.09/43,562.14 = 18,835.70/x
  3. Step 3: Cross multiply
    31,568.09x = 43,562.14 × 18,835.70
  4. Step 4: Simplify right side
    31,568.09x = 820,523,135.50
  5. Step 5: Solve for x
    x = 820,523,135.50/31,568.09
  6. Step 6: Final answer
    x = 25,992.17

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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.