Home / 21,733.88-30,011.14-13,790.20

Finding the Fourth Proportional to 21,733.88, 30,011.14 and 13,790.20

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Solution

The fourth proportional to 21,733.88, 30,011.14 and 13,790.20 is: 19,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.88 : 30,011.14 = 13,790.20 : x
  2. Step 2: Convert to fraction form
    21,733.88/30,011.14 = 13,790.20/x
  3. Step 3: Cross multiply
    21,733.88x = 30,011.14 × 13,790.20
  4. Step 4: Simplify right side
    21,733.88x = 413,859,622.83
  5. Step 5: Solve for x
    x = 413,859,622.83/21,733.88
  6. Step 6: Final answer
    x = 19,042.14

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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.