Home / 21,727-29,983.26-12,295.59

Finding the Fourth Proportional to 21,727, 29,983.26 and 12,295.59

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Solution

The fourth proportional to 21,727, 29,983.26 and 12,295.59 is: 16,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727 : 29,983.26 = 12,295.59 : x
  2. Step 2: Convert to fraction form
    21,727/29,983.26 = 12,295.59/x
  3. Step 3: Cross multiply
    21,727x = 29,983.26 × 12,295.59
  4. Step 4: Simplify right side
    21,727x = 368,661,871.82
  5. Step 5: Solve for x
    x = 368,661,871.82/21,727
  6. Step 6: Final answer
    x = 16,967.91

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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.