Home / 21,228.84-29,295.22-11,797.16

Finding the Fourth Proportional to 21,228.84, 29,295.22 and 11,797.16

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Solution

The fourth proportional to 21,228.84, 29,295.22 and 11,797.16 is: 16,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.84 : 29,295.22 = 11,797.16 : x
  2. Step 2: Convert to fraction form
    21,228.84/29,295.22 = 11,797.16/x
  3. Step 3: Cross multiply
    21,228.84x = 29,295.22 × 11,797.16
  4. Step 4: Simplify right side
    21,228.84x = 345,600,397.58
  5. Step 5: Solve for x
    x = 345,600,397.58/21,228.84
  6. Step 6: Final answer
    x = 16,279.76

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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.