Home / 39,575.21-54,611.28-21,670.43

Finding the Fourth Proportional to 39,575.21, 54,611.28 and 21,670.43

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Solution

The fourth proportional to 39,575.21, 54,611.28 and 21,670.43 is: 29,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,575.21 : 54,611.28 = 21,670.43 : x
  2. Step 2: Convert to fraction form
    39,575.21/54,611.28 = 21,670.43/x
  3. Step 3: Cross multiply
    39,575.21x = 54,611.28 × 21,670.43
  4. Step 4: Simplify right side
    39,575.21x = 1,183,449,647.39
  5. Step 5: Solve for x
    x = 1,183,449,647.39/39,575.21
  6. Step 6: Final answer
    x = 29,903.82

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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.