Home / 21,712.54-29,964.75-12,153.26

Finding the Fourth Proportional to 21,712.54, 29,964.75 and 12,153.26

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Solution

The fourth proportional to 21,712.54, 29,964.75 and 12,153.26 is: 16,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.54 : 29,964.75 = 12,153.26 : x
  2. Step 2: Convert to fraction form
    21,712.54/29,964.75 = 12,153.26/x
  3. Step 3: Cross multiply
    21,712.54x = 29,964.75 × 12,153.26
  4. Step 4: Simplify right side
    21,712.54x = 364,169,397.59
  5. Step 5: Solve for x
    x = 364,169,397.59/21,712.54
  6. Step 6: Final answer
    x = 16,772.31

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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.