Home / 38,403.11-52,999.52-21,408.30

Finding the Fourth Proportional to 38,403.11, 52,999.52 and 21,408.30

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Solution

The fourth proportional to 38,403.11, 52,999.52 and 21,408.30 is: 29,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.11 : 52,999.52 = 21,408.30 : x
  2. Step 2: Convert to fraction form
    38,403.11/52,999.52 = 21,408.30/x
  3. Step 3: Cross multiply
    38,403.11x = 52,999.52 × 21,408.30
  4. Step 4: Simplify right side
    38,403.11x = 1,134,629,516.97
  5. Step 5: Solve for x
    x = 1,134,629,516.97/38,403.11
  6. Step 6: Final answer
    x = 29,545.25

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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.