Home / 21,167.92-29,205.06-13,214.75

Finding the Fourth Proportional to 21,167.92, 29,205.06 and 13,214.75

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Solution

The fourth proportional to 21,167.92, 29,205.06 and 13,214.75 is: 18,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.92 : 29,205.06 = 13,214.75 : x
  2. Step 2: Convert to fraction form
    21,167.92/29,205.06 = 13,214.75/x
  3. Step 3: Cross multiply
    21,167.92x = 29,205.06 × 13,214.75
  4. Step 4: Simplify right side
    21,167.92x = 385,937,371.05
  5. Step 5: Solve for x
    x = 385,937,371.05/21,167.92
  6. Step 6: Final answer
    x = 18,232.19

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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.