Home / 21,864.65-30,175.54-13,371.73

Finding the Fourth Proportional to 21,864.65, 30,175.54 and 13,371.73

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Solution

The fourth proportional to 21,864.65, 30,175.54 and 13,371.73 is: 18,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.65 : 30,175.54 = 13,371.73 : x
  2. Step 2: Convert to fraction form
    21,864.65/30,175.54 = 13,371.73/x
  3. Step 3: Cross multiply
    21,864.65x = 30,175.54 × 13,371.73
  4. Step 4: Simplify right side
    21,864.65x = 403,499,064.62
  5. Step 5: Solve for x
    x = 403,499,064.62/21,864.65
  6. Step 6: Final answer
    x = 18,454.41

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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.