Home / 39,458.94-54,453.01-21,553.95

Finding the Fourth Proportional to 39,458.94, 54,453.01 and 21,553.95

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Solution

The fourth proportional to 39,458.94, 54,453.01 and 21,553.95 is: 29,744.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.94 : 54,453.01 = 21,553.95 : x
  2. Step 2: Convert to fraction form
    39,458.94/54,453.01 = 21,553.95/x
  3. Step 3: Cross multiply
    39,458.94x = 54,453.01 × 21,553.95
  4. Step 4: Simplify right side
    39,458.94x = 1,173,677,347.12
  5. Step 5: Solve for x
    x = 1,173,677,347.12/39,458.94
  6. Step 6: Final answer
    x = 29,744.27

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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.