Home / 31,859.57-43,949.64-19,106.63

Finding the Fourth Proportional to 31,859.57, 43,949.64 and 19,106.63

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Solution

The fourth proportional to 31,859.57, 43,949.64 and 19,106.63 is: 26,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,859.57 : 43,949.64 = 19,106.63 : x
  2. Step 2: Convert to fraction form
    31,859.57/43,949.64 = 19,106.63/x
  3. Step 3: Cross multiply
    31,859.57x = 43,949.64 × 19,106.63
  4. Step 4: Simplify right side
    31,859.57x = 839,729,526.83
  5. Step 5: Solve for x
    x = 839,729,526.83/31,859.57
  6. Step 6: Final answer
    x = 26,357.21

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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.