Home / 21,950.64-30,291.90-11,879.04

Finding the Fourth Proportional to 21,950.64, 30,291.90 and 11,879.04

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Solution

The fourth proportional to 21,950.64, 30,291.90 and 11,879.04 is: 16,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.64 : 30,291.90 = 11,879.04 : x
  2. Step 2: Convert to fraction form
    21,950.64/30,291.90 = 11,879.04/x
  3. Step 3: Cross multiply
    21,950.64x = 30,291.90 × 11,879.04
  4. Step 4: Simplify right side
    21,950.64x = 359,838,691.78
  5. Step 5: Solve for x
    x = 359,838,691.78/21,950.64
  6. Step 6: Final answer
    x = 16,393.08

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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.