Home / 21,950.24-30,291.52-12,519.28

Finding the Fourth Proportional to 21,950.24, 30,291.52 and 12,519.28

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Solution

The fourth proportional to 21,950.24, 30,291.52 and 12,519.28 is: 17,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.24 : 30,291.52 = 12,519.28 : x
  2. Step 2: Convert to fraction form
    21,950.24/30,291.52 = 12,519.28/x
  3. Step 3: Cross multiply
    21,950.24x = 30,291.52 × 12,519.28
  4. Step 4: Simplify right side
    21,950.24x = 379,228,020.51
  5. Step 5: Solve for x
    x = 379,228,020.51/21,950.24
  6. Step 6: Final answer
    x = 17,276.71

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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.