Home / 21,972.33-30,324.78-12,541.50

Finding the Fourth Proportional to 21,972.33, 30,324.78 and 12,541.50

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Solution

The fourth proportional to 21,972.33, 30,324.78 and 12,541.50 is: 17,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.33 : 30,324.78 = 12,541.50 : x
  2. Step 2: Convert to fraction form
    21,972.33/30,324.78 = 12,541.50/x
  3. Step 3: Cross multiply
    21,972.33x = 30,324.78 × 12,541.50
  4. Step 4: Simplify right side
    21,972.33x = 380,318,228.37
  5. Step 5: Solve for x
    x = 380,318,228.37/21,972.33
  6. Step 6: Final answer
    x = 17,308.96

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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.