Home / 21,201.68-29,256.16-12,252.04

Finding the Fourth Proportional to 21,201.68, 29,256.16 and 12,252.04

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Solution

The fourth proportional to 21,201.68, 29,256.16 and 12,252.04 is: 16,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.68 : 29,256.16 = 12,252.04 : x
  2. Step 2: Convert to fraction form
    21,201.68/29,256.16 = 12,252.04/x
  3. Step 3: Cross multiply
    21,201.68x = 29,256.16 × 12,252.04
  4. Step 4: Simplify right side
    21,201.68x = 358,447,642.57
  5. Step 5: Solve for x
    x = 358,447,642.57/21,201.68
  6. Step 6: Final answer
    x = 16,906.57

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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.