Home / 30,621.03-42,257.69-17,192.66

Finding the Fourth Proportional to 30,621.03, 42,257.69 and 17,192.66

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Solution

The fourth proportional to 30,621.03, 42,257.69 and 17,192.66 is: 23,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.03 : 42,257.69 = 17,192.66 : x
  2. Step 2: Convert to fraction form
    30,621.03/42,257.69 = 17,192.66/x
  3. Step 3: Cross multiply
    30,621.03x = 42,257.69 × 17,192.66
  4. Step 4: Simplify right side
    30,621.03x = 726,521,799.30
  5. Step 5: Solve for x
    x = 726,521,799.30/30,621.03
  6. Step 6: Final answer
    x = 23,726.24

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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.