Home / 38,408.15-53,003.13-21,412.24

Finding the Fourth Proportional to 38,408.15, 53,003.13 and 21,412.24

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Solution

The fourth proportional to 38,408.15, 53,003.13 and 21,412.24 is: 29,548.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.15 : 53,003.13 = 21,412.24 : x
  2. Step 2: Convert to fraction form
    38,408.15/53,003.13 = 21,412.24/x
  3. Step 3: Cross multiply
    38,408.15x = 53,003.13 × 21,412.24
  4. Step 4: Simplify right side
    38,408.15x = 1,134,915,740.31
  5. Step 5: Solve for x
    x = 1,134,915,740.31/38,408.15
  6. Step 6: Final answer
    x = 29,548.83

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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.