Home / 38,699.89-53,408.01-29,122.56

Finding the Fourth Proportional to 38,699.89, 53,408.01 and 29,122.56

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Solution

The fourth proportional to 38,699.89, 53,408.01 and 29,122.56 is: 40,190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,699.89 : 53,408.01 = 29,122.56 : x
  2. Step 2: Convert to fraction form
    38,699.89/53,408.01 = 29,122.56/x
  3. Step 3: Cross multiply
    38,699.89x = 53,408.01 × 29,122.56
  4. Step 4: Simplify right side
    38,699.89x = 1,555,377,975.71
  5. Step 5: Solve for x
    x = 1,555,377,975.71/38,699.89
  6. Step 6: Final answer
    x = 40,190.76

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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.