Home / 21,155.24-29,197.33-12,200.99

Finding the Fourth Proportional to 21,155.24, 29,197.33 and 12,200.99

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Solution

The fourth proportional to 21,155.24, 29,197.33 and 12,200.99 is: 16,839.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.24 : 29,197.33 = 12,200.99 : x
  2. Step 2: Convert to fraction form
    21,155.24/29,197.33 = 12,200.99/x
  3. Step 3: Cross multiply
    21,155.24x = 29,197.33 × 12,200.99
  4. Step 4: Simplify right side
    21,155.24x = 356,236,154.87
  5. Step 5: Solve for x
    x = 356,236,154.87/21,155.24
  6. Step 6: Final answer
    x = 16,839.14

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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.