Home / 31,607.29-43,619.33-18,178.54

Finding the Fourth Proportional to 31,607.29, 43,619.33 and 18,178.54

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Solution

The fourth proportional to 31,607.29, 43,619.33 and 18,178.54 is: 25,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.29 : 43,619.33 = 18,178.54 : x
  2. Step 2: Convert to fraction form
    31,607.29/43,619.33 = 18,178.54/x
  3. Step 3: Cross multiply
    31,607.29x = 43,619.33 × 18,178.54
  4. Step 4: Simplify right side
    31,607.29x = 792,935,735.18
  5. Step 5: Solve for x
    x = 792,935,735.18/31,607.29
  6. Step 6: Final answer
    x = 25,087.12

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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.