Home / 31,310.16-43,209.04-17,878.56

Finding the Fourth Proportional to 31,310.16, 43,209.04 and 17,878.56

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Solution

The fourth proportional to 31,310.16, 43,209.04 and 17,878.56 is: 24,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.16 : 43,209.04 = 17,878.56 : x
  2. Step 2: Convert to fraction form
    31,310.16/43,209.04 = 17,878.56/x
  3. Step 3: Cross multiply
    31,310.16x = 43,209.04 × 17,878.56
  4. Step 4: Simplify right side
    31,310.16x = 772,515,414.18
  5. Step 5: Solve for x
    x = 772,515,414.18/31,310.16
  6. Step 6: Final answer
    x = 24,672.99

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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.