Home / 39,637.58-54,699.24-21,732.74

Finding the Fourth Proportional to 39,637.58, 54,699.24 and 21,732.74

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Solution

The fourth proportional to 39,637.58, 54,699.24 and 21,732.74 is: 29,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637.58 : 54,699.24 = 21,732.74 : x
  2. Step 2: Convert to fraction form
    39,637.58/54,699.24 = 21,732.74/x
  3. Step 3: Cross multiply
    39,637.58x = 54,699.24 × 21,732.74
  4. Step 4: Simplify right side
    39,637.58x = 1,188,764,361.12
  5. Step 5: Solve for x
    x = 1,188,764,361.12/39,637.58
  6. Step 6: Final answer
    x = 29,990.84

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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.