Home / 21,950.06-30,291.30-11,878.71

Finding the Fourth Proportional to 21,950.06, 30,291.30 and 11,878.71

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Solution

The fourth proportional to 21,950.06, 30,291.30 and 11,878.71 is: 16,392.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.06 : 30,291.30 = 11,878.71 : x
  2. Step 2: Convert to fraction form
    21,950.06/30,291.30 = 11,878.71/x
  3. Step 3: Cross multiply
    21,950.06x = 30,291.30 × 11,878.71
  4. Step 4: Simplify right side
    21,950.06x = 359,821,625.02
  5. Step 5: Solve for x
    x = 359,821,625.02/21,950.06
  6. Step 6: Final answer
    x = 16,392.74

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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.