Home / 31,790.36-43,872.80-17,643.21

Finding the Fourth Proportional to 31,790.36, 43,872.80 and 17,643.21

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Solution

The fourth proportional to 31,790.36, 43,872.80 and 17,643.21 is: 24,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.36 : 43,872.80 = 17,643.21 : x
  2. Step 2: Convert to fraction form
    31,790.36/43,872.80 = 17,643.21/x
  3. Step 3: Cross multiply
    31,790.36x = 43,872.80 × 17,643.21
  4. Step 4: Simplify right side
    31,790.36x = 774,057,023.69
  5. Step 5: Solve for x
    x = 774,057,023.69/31,790.36
  6. Step 6: Final answer
    x = 24,348.80

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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.