Home / 31,674.84-43,715.91-18,243.51

Finding the Fourth Proportional to 31,674.84, 43,715.91 and 18,243.51

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Solution

The fourth proportional to 31,674.84, 43,715.91 and 18,243.51 is: 25,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,674.84 : 43,715.91 = 18,243.51 : x
  2. Step 2: Convert to fraction form
    31,674.84/43,715.91 = 18,243.51/x
  3. Step 3: Cross multiply
    31,674.84x = 43,715.91 × 18,243.51
  4. Step 4: Simplify right side
    31,674.84x = 797,531,641.24
  5. Step 5: Solve for x
    x = 797,531,641.24/31,674.84
  6. Step 6: Final answer
    x = 25,178.71

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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.