Home / 21,542.97-29,730.66-12,112.14

Finding the Fourth Proportional to 21,542.97, 29,730.66 and 12,112.14

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Solution

The fourth proportional to 21,542.97, 29,730.66 and 12,112.14 is: 16,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.97 : 29,730.66 = 12,112.14 : x
  2. Step 2: Convert to fraction form
    21,542.97/29,730.66 = 12,112.14/x
  3. Step 3: Cross multiply
    21,542.97x = 29,730.66 × 12,112.14
  4. Step 4: Simplify right side
    21,542.97x = 360,101,916.21
  5. Step 5: Solve for x
    x = 360,101,916.21/21,542.97
  6. Step 6: Final answer
    x = 16,715.52

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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.