Home / 31,210.88-43,072.04-17,782.70

Finding the Fourth Proportional to 31,210.88, 43,072.04 and 17,782.70

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Solution

The fourth proportional to 31,210.88, 43,072.04 and 17,782.70 is: 24,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,210.88 : 43,072.04 = 17,782.70 : x
  2. Step 2: Convert to fraction form
    31,210.88/43,072.04 = 17,782.70/x
  3. Step 3: Cross multiply
    31,210.88x = 43,072.04 × 17,782.70
  4. Step 4: Simplify right side
    31,210.88x = 765,937,076.79
  5. Step 5: Solve for x
    x = 765,937,076.79/31,210.88
  6. Step 6: Final answer
    x = 24,540.71

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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.