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Finding the Fourth Proportional to 38,318.29, 52,879.71 and 21,551.29

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Solution

The fourth proportional to 38,318.29, 52,879.71 and 21,551.29 is: 29,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,318.29 : 52,879.71 = 21,551.29 : x
  2. Step 2: Convert to fraction form
    38,318.29/52,879.71 = 21,551.29/x
  3. Step 3: Cross multiply
    38,318.29x = 52,879.71 × 21,551.29
  4. Step 4: Simplify right side
    38,318.29x = 1,139,625,965.33
  5. Step 5: Solve for x
    x = 1,139,625,965.33/38,318.29
  6. Step 6: Final answer
    x = 29,741.04

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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.