Home / 21,217.38-29,280.07-11,658.04

Finding the Fourth Proportional to 21,217.38, 29,280.07 and 11,658.04

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Solution

The fourth proportional to 21,217.38, 29,280.07 and 11,658.04 is: 16,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.38 : 29,280.07 = 11,658.04 : x
  2. Step 2: Convert to fraction form
    21,217.38/29,280.07 = 11,658.04/x
  3. Step 3: Cross multiply
    21,217.38x = 29,280.07 × 11,658.04
  4. Step 4: Simplify right side
    21,217.38x = 341,348,234.72
  5. Step 5: Solve for x
    x = 341,348,234.72/21,217.38
  6. Step 6: Final answer
    x = 16,088.14

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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.