Home / 21,627.19-29,845.53-12,195.76

Finding the Fourth Proportional to 21,627.19, 29,845.53 and 12,195.76

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Solution

The fourth proportional to 21,627.19, 29,845.53 and 12,195.76 is: 16,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.19 : 29,845.53 = 12,195.76 : x
  2. Step 2: Convert to fraction form
    21,627.19/29,845.53 = 12,195.76/x
  3. Step 3: Cross multiply
    21,627.19x = 29,845.53 × 12,195.76
  4. Step 4: Simplify right side
    21,627.19x = 363,988,920.95
  5. Step 5: Solve for x
    x = 363,988,920.95/21,627.19
  6. Step 6: Final answer
    x = 16,830.15

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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.