Home / 21,224.81-31,793.46-12,433.07

Finding the Fourth Proportional to 21,224.81, 31,793.46 and 12,433.07

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Solution

The fourth proportional to 21,224.81, 31,793.46 and 12,433.07 is: 18,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.81 : 31,793.46 = 12,433.07 : x
  2. Step 2: Convert to fraction form
    21,224.81/31,793.46 = 12,433.07/x
  3. Step 3: Cross multiply
    21,224.81x = 31,793.46 × 12,433.07
  4. Step 4: Simplify right side
    21,224.81x = 395,290,313.72
  5. Step 5: Solve for x
    x = 395,290,313.72/21,224.81
  6. Step 6: Final answer
    x = 18,623.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.