Home / 21,174.25-29,220.27-11,613.95

Finding the Fourth Proportional to 21,174.25, 29,220.27 and 11,613.95

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Solution

The fourth proportional to 21,174.25, 29,220.27 and 11,613.95 is: 16,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.25 : 29,220.27 = 11,613.95 : x
  2. Step 2: Convert to fraction form
    21,174.25/29,220.27 = 11,613.95/x
  3. Step 3: Cross multiply
    21,174.25x = 29,220.27 × 11,613.95
  4. Step 4: Simplify right side
    21,174.25x = 339,362,565.11
  5. Step 5: Solve for x
    x = 339,362,565.11/21,174.25
  6. Step 6: Final answer
    x = 16,027.13

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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.