Home / 30,732.97-42,411.09-17,305.55

Finding the Fourth Proportional to 30,732.97, 42,411.09 and 17,305.55

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Solution

The fourth proportional to 30,732.97, 42,411.09 and 17,305.55 is: 23,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.97 : 42,411.09 = 17,305.55 : x
  2. Step 2: Convert to fraction form
    30,732.97/42,411.09 = 17,305.55/x
  3. Step 3: Cross multiply
    30,732.97x = 42,411.09 × 17,305.55
  4. Step 4: Simplify right side
    30,732.97x = 733,947,250.43
  5. Step 5: Solve for x
    x = 733,947,250.43/30,732.97
  6. Step 6: Final answer
    x = 23,881.43

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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.