Home / 39,431.21-54,412.56-23,515.92

Finding the Fourth Proportional to 39,431.21, 54,412.56 and 23,515.92

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Solution

The fourth proportional to 39,431.21, 54,412.56 and 23,515.92 is: 32,450.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.21 : 54,412.56 = 23,515.92 : x
  2. Step 2: Convert to fraction form
    39,431.21/54,412.56 = 23,515.92/x
  3. Step 3: Cross multiply
    39,431.21x = 54,412.56 × 23,515.92
  4. Step 4: Simplify right side
    39,431.21x = 1,279,561,407.96
  5. Step 5: Solve for x
    x = 1,279,561,407.96/39,431.21
  6. Step 6: Final answer
    x = 32,450.48

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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.