Home / 31,369.67-43,298.13-17,945.13

Finding the Fourth Proportional to 31,369.67, 43,298.13 and 17,945.13

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Solution

The fourth proportional to 31,369.67, 43,298.13 and 17,945.13 is: 24,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.67 : 43,298.13 = 17,945.13 : x
  2. Step 2: Convert to fraction form
    31,369.67/43,298.13 = 17,945.13/x
  3. Step 3: Cross multiply
    31,369.67x = 43,298.13 × 17,945.13
  4. Step 4: Simplify right side
    31,369.67x = 776,990,571.61
  5. Step 5: Solve for x
    x = 776,990,571.61/31,369.67
  6. Step 6: Final answer
    x = 24,768.85

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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.