Home / 39,438.48-54,425.52-21,533.88

Finding the Fourth Proportional to 39,438.48, 54,425.52 and 21,533.88

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Solution

The fourth proportional to 39,438.48, 54,425.52 and 21,533.88 is: 29,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.48 : 54,425.52 = 21,533.88 : x
  2. Step 2: Convert to fraction form
    39,438.48/54,425.52 = 21,533.88/x
  3. Step 3: Cross multiply
    39,438.48x = 54,425.52 × 21,533.88
  4. Step 4: Simplify right side
    39,438.48x = 1,171,992,616.62
  5. Step 5: Solve for x
    x = 1,171,992,616.62/39,438.48
  6. Step 6: Final answer
    x = 29,716.98

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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.