Home / 39,436.21-54,424.19-21,532.88

Finding the Fourth Proportional to 39,436.21, 54,424.19 and 21,532.88

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Solution

The fourth proportional to 39,436.21, 54,424.19 and 21,532.88 is: 29,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.21 : 54,424.19 = 21,532.88 : x
  2. Step 2: Convert to fraction form
    39,436.21/54,424.19 = 21,532.88/x
  3. Step 3: Cross multiply
    39,436.21x = 54,424.19 × 21,532.88
  4. Step 4: Simplify right side
    39,436.21x = 1,171,909,444.70
  5. Step 5: Solve for x
    x = 1,171,909,444.70/39,436.21
  6. Step 6: Final answer
    x = 29,716.58

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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.