Home / 31,681.84-43,725.57-18,250.51

Finding the Fourth Proportional to 31,681.84, 43,725.57 and 18,250.51

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Solution

The fourth proportional to 31,681.84, 43,725.57 and 18,250.51 is: 25,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.84 : 43,725.57 = 18,250.51 : x
  2. Step 2: Convert to fraction form
    31,681.84/43,725.57 = 18,250.51/x
  3. Step 3: Cross multiply
    31,681.84x = 43,725.57 × 18,250.51
  4. Step 4: Simplify right side
    31,681.84x = 798,013,952.54
  5. Step 5: Solve for x
    x = 798,013,952.54/31,681.84
  6. Step 6: Final answer
    x = 25,188.37

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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.