Home / 21,719.52-29,973.51-12,286.26

Finding the Fourth Proportional to 21,719.52, 29,973.51 and 12,286.26

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Solution

The fourth proportional to 21,719.52, 29,973.51 and 12,286.26 is: 16,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.52 : 29,973.51 = 12,286.26 : x
  2. Step 2: Convert to fraction form
    21,719.52/29,973.51 = 12,286.26/x
  3. Step 3: Cross multiply
    21,719.52x = 29,973.51 × 12,286.26
  4. Step 4: Simplify right side
    21,719.52x = 368,262,336.97
  5. Step 5: Solve for x
    x = 368,262,336.97/21,719.52
  6. Step 6: Final answer
    x = 16,955.36

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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.