Home / 21,528.73-29,709.66-12,097.36

Finding the Fourth Proportional to 21,528.73, 29,709.66 and 12,097.36

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Solution

The fourth proportional to 21,528.73, 29,709.66 and 12,097.36 is: 16,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.73 : 29,709.66 = 12,097.36 : x
  2. Step 2: Convert to fraction form
    21,528.73/29,709.66 = 12,097.36/x
  3. Step 3: Cross multiply
    21,528.73x = 29,709.66 × 12,097.36
  4. Step 4: Simplify right side
    21,528.73x = 359,408,452.50
  5. Step 5: Solve for x
    x = 359,408,452.50/21,528.73
  6. Step 6: Final answer
    x = 16,694.36

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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.