Home / 31,823.37-43,910.46-18,389.70

Finding the Fourth Proportional to 31,823.37, 43,910.46 and 18,389.70

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Solution

The fourth proportional to 31,823.37, 43,910.46 and 18,389.70 is: 25,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,823.37 : 43,910.46 = 18,389.70 : x
  2. Step 2: Convert to fraction form
    31,823.37/43,910.46 = 18,389.70/x
  3. Step 3: Cross multiply
    31,823.37x = 43,910.46 × 18,389.70
  4. Step 4: Simplify right side
    31,823.37x = 807,500,186.26
  5. Step 5: Solve for x
    x = 807,500,186.26/31,823.37
  6. Step 6: Final answer
    x = 25,374.44

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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.