Home / 31,698.84-43,744.10-18,265.16

Finding the Fourth Proportional to 31,698.84, 43,744.10 and 18,265.16

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Solution

The fourth proportional to 31,698.84, 43,744.10 and 18,265.16 is: 25,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,698.84 : 43,744.10 = 18,265.16 : x
  2. Step 2: Convert to fraction form
    31,698.84/43,744.10 = 18,265.16/x
  3. Step 3: Cross multiply
    31,698.84x = 43,744.10 × 18,265.16
  4. Step 4: Simplify right side
    31,698.84x = 798,992,985.56
  5. Step 5: Solve for x
    x = 798,992,985.56/31,698.84
  6. Step 6: Final answer
    x = 25,205.75

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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.