Home / 21,206.72-31,824.16-14,194.56

Finding the Fourth Proportional to 21,206.72, 31,824.16 and 14,194.56

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Solution

The fourth proportional to 21,206.72, 31,824.16 and 14,194.56 is: 21,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.72 : 31,824.16 = 14,194.56 : x
  2. Step 2: Convert to fraction form
    21,206.72/31,824.16 = 14,194.56/x
  3. Step 3: Cross multiply
    21,206.72x = 31,824.16 × 14,194.56
  4. Step 4: Simplify right side
    21,206.72x = 451,729,948.57
  5. Step 5: Solve for x
    x = 451,729,948.57/21,206.72
  6. Step 6: Final answer
    x = 21,301.26

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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.