Home / 31,203.21-43,063.44-17,778.81

Finding the Fourth Proportional to 31,203.21, 43,063.44 and 17,778.81

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Solution

The fourth proportional to 31,203.21, 43,063.44 and 17,778.81 is: 24,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.21 : 43,063.44 = 17,778.81 : x
  2. Step 2: Convert to fraction form
    31,203.21/43,063.44 = 17,778.81/x
  3. Step 3: Cross multiply
    31,203.21x = 43,063.44 × 17,778.81
  4. Step 4: Simplify right side
    31,203.21x = 765,616,717.71
  5. Step 5: Solve for x
    x = 765,616,717.71/31,203.21
  6. Step 6: Final answer
    x = 24,536.47

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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.