Home / 30,633.97-42,275.83-17,205.51

Finding the Fourth Proportional to 30,633.97, 42,275.83 and 17,205.51

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Solution

The fourth proportional to 30,633.97, 42,275.83 and 17,205.51 is: 23,744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,633.97 : 42,275.83 = 17,205.51 : x
  2. Step 2: Convert to fraction form
    30,633.97/42,275.83 = 17,205.51/x
  3. Step 3: Cross multiply
    30,633.97x = 42,275.83 × 17,205.51
  4. Step 4: Simplify right side
    30,633.97x = 727,377,129.80
  5. Step 5: Solve for x
    x = 727,377,129.80/30,633.97
  6. Step 6: Final answer
    x = 23,744.13

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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.