Home / 30,655.91-42,297.36-17,900.97

Finding the Fourth Proportional to 30,655.91, 42,297.36 and 17,900.97

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Solution

The fourth proportional to 30,655.91, 42,297.36 and 17,900.97 is: 24,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.91 : 42,297.36 = 17,900.97 : x
  2. Step 2: Convert to fraction form
    30,655.91/42,297.36 = 17,900.97/x
  3. Step 3: Cross multiply
    30,655.91x = 42,297.36 × 17,900.97
  4. Step 4: Simplify right side
    30,655.91x = 757,163,772.44
  5. Step 5: Solve for x
    x = 757,163,772.44/30,655.91
  6. Step 6: Final answer
    x = 24,698.79

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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.