Home / 21,883.68-30,211.92-14,453.28

Finding the Fourth Proportional to 21,883.68, 30,211.92 and 14,453.28

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Solution

The fourth proportional to 21,883.68, 30,211.92 and 14,453.28 is: 19,953.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.68 : 30,211.92 = 14,453.28 : x
  2. Step 2: Convert to fraction form
    21,883.68/30,211.92 = 14,453.28/x
  3. Step 3: Cross multiply
    21,883.68x = 30,211.92 × 14,453.28
  4. Step 4: Simplify right side
    21,883.68x = 436,661,339.10
  5. Step 5: Solve for x
    x = 436,661,339.10/21,883.68
  6. Step 6: Final answer
    x = 19,953.74

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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.