Home / 31,188.75-43,041.42-17,042.51

Finding the Fourth Proportional to 31,188.75, 43,041.42 and 17,042.51

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Solution

The fourth proportional to 31,188.75, 43,041.42 and 17,042.51 is: 23,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.75 : 43,041.42 = 17,042.51 : x
  2. Step 2: Convert to fraction form
    31,188.75/43,041.42 = 17,042.51/x
  3. Step 3: Cross multiply
    31,188.75x = 43,041.42 × 17,042.51
  4. Step 4: Simplify right side
    31,188.75x = 733,533,615.56
  5. Step 5: Solve for x
    x = 733,533,615.56/31,188.75
  6. Step 6: Final answer
    x = 23,519.17

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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.