Home / 31,215.07-43,080.57-17,605.70

Finding the Fourth Proportional to 31,215.07, 43,080.57 and 17,605.70

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Solution

The fourth proportional to 31,215.07, 43,080.57 and 17,605.70 is: 24,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.07 : 43,080.57 = 17,605.70 : x
  2. Step 2: Convert to fraction form
    31,215.07/43,080.57 = 17,605.70/x
  3. Step 3: Cross multiply
    31,215.07x = 43,080.57 × 17,605.70
  4. Step 4: Simplify right side
    31,215.07x = 758,463,591.25
  5. Step 5: Solve for x
    x = 758,463,591.25/31,215.07
  6. Step 6: Final answer
    x = 24,297.99

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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.