Home / 21,952.76-30,294.54-11,880.96

Finding the Fourth Proportional to 21,952.76, 30,294.54 and 11,880.96

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Solution

The fourth proportional to 21,952.76, 30,294.54 and 11,880.96 is: 16,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.76 : 30,294.54 = 11,880.96 : x
  2. Step 2: Convert to fraction form
    21,952.76/30,294.54 = 11,880.96/x
  3. Step 3: Cross multiply
    21,952.76x = 30,294.54 × 11,880.96
  4. Step 4: Simplify right side
    21,952.76x = 359,928,104.35
  5. Step 5: Solve for x
    x = 359,928,104.35/21,952.76
  6. Step 6: Final answer
    x = 16,395.58

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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.