Home / 21,981.66-30,299.22-17,193.12

Finding the Fourth Proportional to 21,981.66, 30,299.22 and 17,193.12

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Solution

The fourth proportional to 21,981.66, 30,299.22 and 17,193.12 is: 23,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.66 : 30,299.22 = 17,193.12 : x
  2. Step 2: Convert to fraction form
    21,981.66/30,299.22 = 17,193.12/x
  3. Step 3: Cross multiply
    21,981.66x = 30,299.22 × 17,193.12
  4. Step 4: Simplify right side
    21,981.66x = 520,938,125.37
  5. Step 5: Solve for x
    x = 520,938,125.37/21,981.66
  6. Step 6: Final answer
    x = 23,698.76

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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.