Home / 21,950.64-30,283.44-12,514.20

Finding the Fourth Proportional to 21,950.64, 30,283.44 and 12,514.20

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Solution

The fourth proportional to 21,950.64, 30,283.44 and 12,514.20 is: 17,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.64 : 30,283.44 = 12,514.20 : x
  2. Step 2: Convert to fraction form
    21,950.64/30,283.44 = 12,514.20/x
  3. Step 3: Cross multiply
    21,950.64x = 30,283.44 × 12,514.20
  4. Step 4: Simplify right side
    21,950.64x = 378,973,024.85
  5. Step 5: Solve for x
    x = 378,973,024.85/21,950.64
  6. Step 6: Final answer
    x = 17,264.78

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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.