Home / 21,938.12-30,274.52-11,866.59

Finding the Fourth Proportional to 21,938.12, 30,274.52 and 11,866.59

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Solution

The fourth proportional to 21,938.12, 30,274.52 and 11,866.59 is: 16,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.12 : 30,274.52 = 11,866.59 : x
  2. Step 2: Convert to fraction form
    21,938.12/30,274.52 = 11,866.59/x
  3. Step 3: Cross multiply
    21,938.12x = 30,274.52 × 11,866.59
  4. Step 4: Simplify right side
    21,938.12x = 359,255,345.95
  5. Step 5: Solve for x
    x = 359,255,345.95/21,938.12
  6. Step 6: Final answer
    x = 16,375.85

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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.