Home / 21,658.20-29,884.02-12,224.94

Finding the Fourth Proportional to 21,658.20, 29,884.02 and 12,224.94

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Solution

The fourth proportional to 21,658.20, 29,884.02 and 12,224.94 is: 16,867.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.20 : 29,884.02 = 12,224.94 : x
  2. Step 2: Convert to fraction form
    21,658.20/29,884.02 = 12,224.94/x
  3. Step 3: Cross multiply
    21,658.20x = 29,884.02 × 12,224.94
  4. Step 4: Simplify right side
    21,658.20x = 365,330,351.46
  5. Step 5: Solve for x
    x = 365,330,351.46/21,658.20
  6. Step 6: Final answer
    x = 16,867.99

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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.