Home / 21,800.88-30,083.52-12,371.04

Finding the Fourth Proportional to 21,800.88, 30,083.52 and 12,371.04

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Solution

The fourth proportional to 21,800.88, 30,083.52 and 12,371.04 is: 17,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.88 : 30,083.52 = 12,371.04 : x
  2. Step 2: Convert to fraction form
    21,800.88/30,083.52 = 12,371.04/x
  3. Step 3: Cross multiply
    21,800.88x = 30,083.52 × 12,371.04
  4. Step 4: Simplify right side
    21,800.88x = 372,164,429.26
  5. Step 5: Solve for x
    x = 372,164,429.26/21,800.88
  6. Step 6: Final answer
    x = 17,071.07

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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.