Home / 31,186.14-43,037.51-17,039.90

Finding the Fourth Proportional to 31,186.14, 43,037.51 and 17,039.90

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Solution

The fourth proportional to 31,186.14, 43,037.51 and 17,039.90 is: 23,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186.14 : 43,037.51 = 17,039.90 : x
  2. Step 2: Convert to fraction form
    31,186.14/43,037.51 = 17,039.90/x
  3. Step 3: Cross multiply
    31,186.14x = 43,037.51 × 17,039.90
  4. Step 4: Simplify right side
    31,186.14x = 733,354,566.26
  5. Step 5: Solve for x
    x = 733,354,566.26/31,186.14
  6. Step 6: Final answer
    x = 23,515.40

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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.