Home / 40,412.88-60,620.31-13,758.82

Finding the Fourth Proportional to 40,412.88, 60,620.31 and 13,758.82

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Solution

The fourth proportional to 40,412.88, 60,620.31 and 13,758.82 is: 20,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,412.88 : 60,620.31 = 13,758.82 : x
  2. Step 2: Convert to fraction form
    40,412.88/60,620.31 = 13,758.82/x
  3. Step 3: Cross multiply
    40,412.88x = 60,620.31 × 13,758.82
  4. Step 4: Simplify right side
    40,412.88x = 834,063,782.08
  5. Step 5: Solve for x
    x = 834,063,782.08/40,412.88
  6. Step 6: Final answer
    x = 20,638.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.