Home / 21,966.14-30,313.78-12,535.58

Finding the Fourth Proportional to 21,966.14, 30,313.78 and 12,535.58

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Solution

The fourth proportional to 21,966.14, 30,313.78 and 12,535.58 is: 17,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.14 : 30,313.78 = 12,535.58 : x
  2. Step 2: Convert to fraction form
    21,966.14/30,313.78 = 12,535.58/x
  3. Step 3: Cross multiply
    21,966.14x = 30,313.78 × 12,535.58
  4. Step 4: Simplify right side
    21,966.14x = 380,000,662.72
  5. Step 5: Solve for x
    x = 380,000,662.72/21,966.14
  6. Step 6: Final answer
    x = 17,299.39

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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.