Home / 21,418.80-32,139.18-10,334.94

Finding the Fourth Proportional to 21,418.80, 32,139.18 and 10,334.94

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Solution

The fourth proportional to 21,418.80, 32,139.18 and 10,334.94 is: 15,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.80 : 32,139.18 = 10,334.94 : x
  2. Step 2: Convert to fraction form
    21,418.80/32,139.18 = 10,334.94/x
  3. Step 3: Cross multiply
    21,418.80x = 32,139.18 × 10,334.94
  4. Step 4: Simplify right side
    21,418.80x = 332,156,496.95
  5. Step 5: Solve for x
    x = 332,156,496.95/21,418.80
  6. Step 6: Final answer
    x = 15,507.71

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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.