Home / 21,093.89-29,148.12-20,069.10

Finding the Fourth Proportional to 21,093.89, 29,148.12 and 20,069.10

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Solution

The fourth proportional to 21,093.89, 29,148.12 and 20,069.10 is: 27,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.89 : 29,148.12 = 20,069.10 : x
  2. Step 2: Convert to fraction form
    21,093.89/29,148.12 = 20,069.10/x
  3. Step 3: Cross multiply
    21,093.89x = 29,148.12 × 20,069.10
  4. Step 4: Simplify right side
    21,093.89x = 584,976,535.09
  5. Step 5: Solve for x
    x = 584,976,535.09/21,093.89
  6. Step 6: Final answer
    x = 27,732.04

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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.