Home / 31,179.42-46,780.74-18,708.39

Finding the Fourth Proportional to 31,179.42, 46,780.74 and 18,708.39

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Solution

The fourth proportional to 31,179.42, 46,780.74 and 18,708.39 is: 28,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.42 : 46,780.74 = 18,708.39 : x
  2. Step 2: Convert to fraction form
    31,179.42/46,780.74 = 18,708.39/x
  3. Step 3: Cross multiply
    31,179.42x = 46,780.74 × 18,708.39
  4. Step 4: Simplify right side
    31,179.42x = 875,192,457.04
  5. Step 5: Solve for x
    x = 875,192,457.04/31,179.42
  6. Step 6: Final answer
    x = 28,069.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.