Home / 21,217.45-29,276.82-12,263.22

Finding the Fourth Proportional to 21,217.45, 29,276.82 and 12,263.22

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Solution

The fourth proportional to 21,217.45, 29,276.82 and 12,263.22 is: 16,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.45 : 29,276.82 = 12,263.22 : x
  2. Step 2: Convert to fraction form
    21,217.45/29,276.82 = 12,263.22/x
  3. Step 3: Cross multiply
    21,217.45x = 29,276.82 × 12,263.22
  4. Step 4: Simplify right side
    21,217.45x = 359,028,084.56
  5. Step 5: Solve for x
    x = 359,028,084.56/21,217.45
  6. Step 6: Final answer
    x = 16,921.36

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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.