Home / 21,673.28-29,908.77-12,113.39

Finding the Fourth Proportional to 21,673.28, 29,908.77 and 12,113.39

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Solution

The fourth proportional to 21,673.28, 29,908.77 and 12,113.39 is: 16,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.28 : 29,908.77 = 12,113.39 : x
  2. Step 2: Convert to fraction form
    21,673.28/29,908.77 = 12,113.39/x
  3. Step 3: Cross multiply
    21,673.28x = 29,908.77 × 12,113.39
  4. Step 4: Simplify right side
    21,673.28x = 362,296,595.43
  5. Step 5: Solve for x
    x = 362,296,595.43/21,673.28
  6. Step 6: Final answer
    x = 16,716.28

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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.