Home / 21,529.80-29,713.86-12,098.34

Finding the Fourth Proportional to 21,529.80, 29,713.86 and 12,098.34

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Solution

The fourth proportional to 21,529.80, 29,713.86 and 12,098.34 is: 16,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.80 : 29,713.86 = 12,098.34 : x
  2. Step 2: Convert to fraction form
    21,529.80/29,713.86 = 12,098.34/x
  3. Step 3: Cross multiply
    21,529.80x = 29,713.86 × 12,098.34
  4. Step 4: Simplify right side
    21,529.80x = 359,488,380.99
  5. Step 5: Solve for x
    x = 359,488,380.99/21,529.80
  6. Step 6: Final answer
    x = 16,697.25

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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.