Home / 21,722.74-29,977.77-12,293.26

Finding the Fourth Proportional to 21,722.74, 29,977.77 and 12,293.26

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Solution

The fourth proportional to 21,722.74, 29,977.77 and 12,293.26 is: 16,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722.74 : 29,977.77 = 12,293.26 : x
  2. Step 2: Convert to fraction form
    21,722.74/29,977.77 = 12,293.26/x
  3. Step 3: Cross multiply
    21,722.74x = 29,977.77 × 12,293.26
  4. Step 4: Simplify right side
    21,722.74x = 368,524,520.83
  5. Step 5: Solve for x
    x = 368,524,520.83/21,722.74
  6. Step 6: Final answer
    x = 16,964.92

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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.